Chapter Text
Jack’s breath caught in his throat, his hands twitching uselessly over his groin as Miko’s bra hit the cavern floor, her pale olive breasts bouncing slightly with her swaggering step forward. Her grin was wide and roguish, eyes glinting with a mix of awe and hunger as they flicked between his glistening cock—still half-buried in June—and his mother’s cum-streaked thighs. Beside him, June stiffened, her forearm pressed tighter across her chest, fingers splaying over her mound, though the sticky trails running down her legs made the gesture futile. Arcee’s plasma cannon whirred down, retracting with a faint click as she propped herself up higher, her clit still glowing faintly, a smirk tugging at her lips.
Jack’s face burned, his voice cracking as he tried to form words. “Miko—what—how are you even here ?” His eyes darted to Arcee, then June.
“Tracked Arcee’s tires, dude,” Miko replied, shrugging. “Saw you peel out with June—knew somethin’ was up. Didn’t expect this , though—holy shit, you’re a legend!” She clapped her hands, bouncing on her toes, her gaze lingering on his “monster” with unabashed interest.
Arcee chuckled, her optics glinting. “This isn’t a spectator sport—what’s your play?”
“Oh, I’m not here to watch,” Miko shot back, her grin widening as she reached behind her back. “I wanna play. You guys need a fourth? ‘Cause I’m all in!” She let the bra drop, her compact breasts free, and swaggered closer, undeterred by their stunned silence.
June blinked, her breath steadying as she rose from her shock, a flicker of resolve hardening her features. She straightened, letting her arm fall from her chest, her nudity suddenly less a vulnerability and more a statement. “Miko, stop,” she said, her voice cutting through the cavern like a whip, firm but not harsh. She stepped forward, planting herself between Miko and Jack, who flinched, his hands still hovering awkwardly.
Miko froze mid-step, her grin faltering, a flash of hurt flickering in her eyes before she masked it with a scoff. “Whoa, chill, June—didn’t mean to step on any toes. Just thought I’d join the party.” She shrugged, her tone light, but her shoulders slumped slightly, betraying the sting.
Arcee tilted her head, her smirk fading into curiosity. “She’s eager, June. Could be fun—imagine Jack with her, too.” Her voice was teasing, but there was a genuine spark of interest in her optics, her massive form shifting slightly as she watched.
Jack’s flush deepened, his hands dropping to his sides as he stammered, “I—I don’t know, I mean—” He glanced at June, then Arcee, caught between their gazes, his dick still traitorously hard despite the chaos.
June held up a hand, silencing them both, her jaw set. “No. Not like this.” She turned, grabbing her jeans from the pile of clothes near the pool, and yanked them on with quick, deliberate motions. “Jack, get dressed. Now.” Her tone brooked no argument, and Jack scrambled to comply, snatching his shirt and pants, fumbling as he pulled them over his slick skin.
Miko crossed her arms, her bravado slipping as she watched June button her jeans. “What’s the big deal? You’re all naked and banging—thought I’d fit right in.” Her voice was teasing, but there was a brittle edge to it, her fingers tightening on her biceps.
June finished dressing, her yellow sleeveless shirt settling over her frame, and turned back to face them. She gestured to the ground near Arcee’s thigh. “Sit. All of you.” Her voice softened, but the maternal steel remained, guiding Jack to sit beside her as he tugged his shirt over his head. He leaned against Arcee’s massive leg, her cool metal grounding him as June took his hand, lacing their fingers together. Arcee shifted to a seated position, her legs folding under her, optics fixed on June with quiet respect.
Miko hesitated, then plopped down cross-legged, and she pulled her shirt back over her head with a huff. “Fine, Mommy’s in charge. What’s the lecture?”
June squeezed Jack’s hand, her thumb brushing over his knuckles as she met Miko’s gaze steadily. “What you just saw, Miko, wasn’t some spur-of-the-moment fling. It’s the result of a lot of talking—weeks of it, between me, Jack, and Arcee. We didn’t just leap into this blind. It’s complicated, and it’s ours.” She paused, her voice calm but unwavering. “We’re not hormonal teens chasing a thrill. This—” she gestured between the three of them—“took trust, and boundaries, and a hell of a lot of care. We’re not dragging you into it just because you walked in.”
Miko’s smirk faded, her eyes dropping to the cavern floor, fingers picking at a loose thread on her shirt. “Yeah, okay, I get it. No crashin’ the family orgy.” She forced a laugh, but it didn’t reach her eyes, her bravado a thin shield over the rejection. “Guess I’ll just sit here and twiddle my thumbs while you guys figure out your kinky shit.”
Jack shifted uncomfortably, his free hand rubbing the back of his neck. “Miko, it’s not like we don’t—uh—care about you. It’s just… this is heavy, y’know? We can’t just—” He trailed off, glancing at June for help, his flustered blush creeping back.
Arcee leaned forward, her voice low and smooth. “I guess she’s right, kid. I might be new to this, but this isn’t a game you jump into. Though—” she smirked faintly—“you’ve got spirit. I’ll give you that.”
Miko’s lips twitched, a grudging smirk breaking through as she looked up at Jack. “Damn, Darby, your mom is pretty hot when she goes all MILF-y mommy-dom like that.” She leaned back on her hands, her tone teasing again, giving her a once-over. “Kinda makes me wanna see you step on me, y’know? ”
June’s eyebrows shot up, a surprised laugh escaping her despite the tension. “You’re incorrigible,” she said, shaking her head, though a faint flush colored her cheeks. She squeezed Jack’s hand again, her voice steadying. “Maybe one day we’ll talk about… something. But not today. Not like this.”
Jack nodded, leaning harder against Arcee’s thigh, her metal cool against his shoulder. “Yeah, Miko. Let’s just—take it slow, okay?”
Miko shrugged, her smirk widening as she stretched her legs out, kicking at a pebble. “Slow’s not my style, but sure, I’ll play nice. For now.” She winked at June, then Jack, her eyes glinting with mischief. “But don’t think I’m letting this go..”
Arcee chuckled, her massive hand resting near Jack’s head, fingers brushing his hair. “You’re a handful, Miko. Good thing we’ve got big hands.” Her optics flickered to June, a silent nod passing between them—agreement, trust, and a hint of what might come next, someday.
Miko stretched her arms above her head, her punk-rock tee riding up to expose a sliver of her toned midriff as she stood, brushing cavern dust off her shorts. Her smirk lingered, but her eyes softened as she glanced at Jack, June, and Arcee, still seated in their tense little circle.
“Alright, fam, I’ll bounce,” she said, her voice light but carrying a faint undertone of resignation. She jerked a thumb toward the thin entryway. “Left a worried Bulkhead out there pacing like a lost puppy. Dude’s probably dented a boulder by now, thinkin’ I got snatched by ‘cons or crushed under some rocks. Dude's metal, but such a worrywart. I’ll be fine—gonna go chill him out.”
Jack shifted against Arcee’s thigh, his brow furrowing as he tugged his shirt straighter. “You sure? It’s dark out there, and—” He cut off, rubbing the back of his neck, his fingers still tacky with drying cum, a flush creeping up his ears.
Miko waved him off, already swaggering toward her discarded boots. “Psh, I’ve got Bulk. He’s my ride-or-die—literally. Catch ya later, stud.” She slipped her boots on, then paused at the fissure, tossing a grin over her shoulder at June. “Keep that mommy-dom energy on lock, June. Might need it for me someday.” With a wink, she ducked through the narrow gap, her silhouette vanishing into the twilight beyond, leaving a faint echo of her footsteps.
June exhaled slowly, her shoulders easing as she squeezed Jack’s hand, her thumb tracing the ridges of his knuckles. The cavern felt quieter now, the air cooler against her sweat-damp skin as she rose, pulling Jack up with her. “Come on, you two,” she said, her voice steady but warm, a maternal thread weaving through it. “Let’s get back to base.” She glanced at Arcee, her lips twitching into a small, tired smile. “You good to roll, big girl?”
Arcee’s optics glinted, a low hum vibrating through her frame as she unfolded her massive legs, standing with a graceful shift of metal. “Always, June,” she replied, her tone smooth and teasing, though her gaze lingered on Jack with a flicker of affection. “Well, that kind of killed the mood. Should we be heading back?" After Jack and June, sharing a quick glance, nodded, she transformed in a fluid whirl of parts, her sleek motorcycle form gleaming under the cavern’s crystalline light, engine purring softly.
Jack grabbed his shoes, slipping them on as he shot a sidelong look at his mom.
“You’re okay, right? After… all that?” His voice was low, tentative, his dark hair sticking to his forehead with lingering sweat.
June’s smile widened, soft and reassuring, as she brushed a hand over his cheek, her fingers cool against his flushed skin.
“I’m fine, baby. Better than fine.” She leaned in, pressing a quick, tender kiss to his temple, then stepped back, nodding toward Arcee. “Hop on. We’re sticking together.”
Jack climbed onto Arcee’s seat, his thighs settling against her warm frame, the vibration of her engine rumbling up through his spine. June slid on behind him, her arms wrapping around his waist, her chest pressing against his back. Her hands rested lightly on his hips, fingers curling into the fabric of his shirt, and he felt her breath against his neck—steady, grounding. Arcee’s side mirrors tilted slightly, her awareness of them both palpable even in her alt-mode.
“Hold tight,” Arcee said, her voice buzzing through her com-system, laced with a playful edge. “Wouldn’t want June falling off after all that action.” Her tires spun briefly, kicking up a puff of dust, before she rolled smoothly toward the cavern exit, her headlight cutting through the dimness.
The ride back to base was a quiet symphony of closeness. The desert air whipped past, cool and sharp, tugging at Jack’s hair and June’s shirt, but the warmth of their bodies pressed together—June’s breasts soft against his spine, her thighs bracketing his—kept the chill at bay. Arcee’s engine purred beneath them, a steady pulse that synced with their breathing, her frame subtly shifting to cradle them both. Jack’s hands gripped her handlebars, his knuckles brushing June’s fingers where they overlapped, and he felt a swell of something—relief, love, maybe awe—tighten his chest. June rested her chin on his shoulder, her cheek brushing his, and he caught the faint scent of her sweat and shampoo, mingling with Arcee’s metallic tang.
“Feels good, doesn’t it?” June murmured near his ear, her voice barely audible over the wind, her lips curving against his skin. “Just us.”
“Yeah,” Jack breathed back, his grip tightening on Arcee as a grin tugged at his mouth. “Really good.”
Arcee’s chuckle vibrated through them. “You two are mushy as hell. You're going to be able to keep your hands to yourself in public, right?” But her tone was warm, her speed steady, as if she relished the weight of them against her.
They reached the Autobot base as dusk settled, the horizon a bruise of purple and orange. Arcee rolled to a stop near the entrance, transforming back with a smooth shift of plates.
Ratchet glanced up from his console as they entered, his optics narrowing at their disheveled state—Jack’s rumpled shirt, June’s slightly askew hair, Arcee’s faintly glowing frame. “You three look like you’ve been through a scrap,” he grumbled, tapping the bridge controls while a shuddering vibration rocked through his entire form. “Don’t tell me—I don’t want to know.”
June laughed, a bright, easy sound, squeezing Jack’s hand as the green swirl of the Groundbridge flared to life. “Just a long day, Ratchet. We’re headed home.”
They stepped through together, emerging into the familiar dimness of the Darby living room. The portal snapped shut behind them, leaving the hum of Arcee’s systems and the faint creak of the house settling around them. Jack kicked off his shoes, collapsing onto the couch with a groan, his legs sprawling. June followed, settling beside him, her thigh pressing against his as she tucked one leg under her. Arcee crouched nearby, her massive form folding down to fit, her hand resting near Jack’s knee, fingers brushing his jeans.
“Home sweet home,” Jack said, his head tipping back, a tired grin spreading across his face. He reached for June’s hand again, lacing their fingers, then stretched his other arm to touch Arcee’s metal plating, the contact sparking a quiet warmth in his chest.
June leaned into him, her shoulder nestling against his, her free hand resting on his thigh. “Never thought I’d feel this close to you both,” she admitted, her voice soft, her blue eyes catching the dim light as she glanced between them. “Not like this.”
Arcee’s optics glowed faintly, her thumb tracing a gentle arc over Jack’s knee. “Guess we’re rewriting the rules, huh?” she said, her tone light but laced with something deeper—pride, maybe, or contentment.
Jack squeezed June’s hand, his fingers tightening around hers as he met Arcee’s gaze. “Yeah. And I wouldn’t change it.” His voice was steady, the flustered edge from Miko’s intrusion gone, replaced by a quiet certainty. He felt June’s breath hitch beside him, her fingers curling tighter, and Arcee’s hum vibrated through the room, a silent agreement binding them in the stillness.
The garage door rumbled shut behind Arcee as she rolled in, her engine’s purr fading to a soft hum. Jack lingered in the living room doorway, watching her massive form shift and settle into her alt-mode, her headlight dimming as she powered down.
“Night, CeeCee,” he called, his voice a low murmur, a faint grin tugging at his lips.
Her com buzzed faintly in reply, a sleepy “G’night, Jack,” before the garage fell silent, her sleek frame glinting faintly in the dark.
June stretched beside him, her yellow sleeveless shirt riding up to reveal a strip of skin above her jeans, still faintly sticky with sweat and cum. She wrinkled her nose, running a hand through her tousled hair.
“God, I feel grimy,” she muttered, her tone half-exasperated, half-amused. She glanced at Jack, her blue eyes catching the dim light, and nodded toward the stairs. “C’mon, let’s clean up.”
Jack followed her up, his sneakers scuffing the hardwood steps, the day’s heat still clinging to his skin—dust, sweat, and the musky residue of their cavern tryst. At the top, he paused outside the bathroom, rubbing the back of his neck, his shirt damp against his chest.
“You go first,” he offered, stepping back with a sheepish grin, his dark hair falling into his eyes. “Ladies first, right?”
June stopped mid-stride, turning to face him, one brow arching high.
“Oh, really?” Her voice was a teasing drawl, laced with a challenge. She hooked her thumbs into the waistband of her tight jeans, her gaze locking onto his as she shimmied them down. The denim slid over her hips with a slow, deliberate wiggle, her plump ass flagging in the air, the curve of her cheeks catching the hallway light. Her pussy peeked out briefly, lips still flushed from earlier, and her asshole winked as she bent slightly, kicking the jeans aside. She straightened, her bare back a smooth expanse, muscles shifting under her skin as she sauntered toward the bathroom, hips swaying with every step.
Jack froze, mouth dry, his cock stirring in his pants as heat surged through him. Her ass—firm, round, and desperately tempting—jiggled faintly with each move, and the sight of her naked confidence hit him like a punch. She reached the bathroom door, then poked her head around the corner, threading a hand through her hair like a model stepping out of a pool, eyes glinting with playful authority.
“Get in here, Jack,” she ordered, her tone sharp but curling with a smirk. “Now. No arguing.”
He blinked, stunned, his dick stiffening fully against his zipper as he fumbled with his shirt.
“Uh—yeah, okay,” he stammered, yanking the fabric over his head, his chest bare and still tacky with sweat. He kicked off his shoes, nearly tripping as he shed his pants, boxers following in a clumsy heap. “Miko was right,” he said, half to himself, his voice husky as he straightened, already starting to strip, cock bobbing free. “You’re a hell of a mommy dom.”
June’s smirk widened, a low chuckle escaping her as she turned the shower on, steam curling into the air. “Well, if you're good, maybe I'll step on you,” she shot back, stepping under the spray, water sluicing over her shoulders, down her breasts, and tracing the dip of her spine. She crooked a finger at him, beckoning. “Move it, big boy.”
Jack stepped in after her, the hot water hitting his skin like a shock, cascading over his broad shoulders and chest, washing away the grime. The shower was tight, their bodies brushing as he reached for her, his hands finding her hips. She turned into him, her wet skin slick against his, and for a moment, they just stood there, the steam wrapping around them. His cock pressed against her thigh, hard and insistent, but he paused, his hands sliding up to her waist, pulling her into a slow, gentle hug. Her breasts flattened against his chest, nipples grazing his skin, and she tilted her head up, her lips brushing his in a soft, lingering kiss.
“Hi,” she murmured against his mouth, her breath warm and minty from the toothpaste she’d swiped earlier, her hands resting on his shoulders, fingers curling into his damp hair.
“Hi,” he echoed, his voice a low rumble, kissing her back with a tenderness that belied the ache in his groin. His lips moved over hers, slow and deliberate, tasting the water and the faint salt of her skin. Her tongue flicked out, teasing his, and he groaned softly, his hands sliding up her back, tracing the knobs of her spine with care.
She pulled back slightly, her eyes half-lidded, water beading on her lashes.
“Turn around,” she said, her tone softening, though that commanding edge lingered. He obeyed, facing the spray, and she grabbed the soap, lathering it between her hands. Her fingers glided over his shoulders, firm but gentle, kneading the tension from his muscles. Suds trailed down his back, over the curve of his ass, and she followed them, washing him with a slow, deliberate touch, her thumbs pressing into the dip above his tailbone.
“Fuck, that feels good,” he muttered, head tipping forward, water streaming through his hair. His cock throbbed, but the moment held a quiet intimacy, her hands grounding him.
“My turn,” he said after a beat, turning to face her, soap in hand. He lathered her shoulders, his fingers slipping over her collarbone, down to her breasts. He cupped them gently, th umbs brushing her nipples, watching them stiffen under the warm water. She sighed, a soft, needy sound, leaning into his touch, and he moved lower, washing her stomach, her hips, his hands lingering where her thighs met, careful not to push too far.
She smirked, catching his wrist as he hesitated near her pussy.
“Tease,” she accused, her voice husky, stepping closer so his cock nudged her belly. She grabbed the shampoo, pouring it into her palm, and reached up, massaging it into his scalp. Her fingers dug in, firm and sure, and he groaned, eyes fluttering shut as she worked, suds dripping down his neck.
“God, you’re good at this,” he said, his hands finding her ass, squeezing lightly as she rinsed his hair, water splashing between them. She tilted her head back, letting him return the favor, his fingers threading through her wet strands, massaging her scalp with the same care. Her eyes closed, a faint moan slipping out, and he felt a surge of arousal tempered by something softer—pride, maybe, or love.
They stood there, water pounding down, bodies pressed close, his cock hard against her, her pussy brushing his thigh. But they lingered in the pause, kissing again—slow, deep, playful—her teeth nipping his lip, his tongue chasing hers. The steam thickened, the air heavy with heat and their mingled scents, and for now, it was enough—just them, washing away the day, wrapped in each other’s touch.
"God, I missed being with a man," June sighed, still stroking her palms along his sides down to his hips.
The shower’s steam thickened around Jack and June, the hot water drumming against their skin as they stood pressed together, bodies slick and gleaming. June’s hands rested on his shoulders, her fingers tracing the taut lines of his muscles, while Jack’s palms cupped her ass, the firm curve of her cheeks filling his grip. His cock, rigid and pulsing, nudged against her belly, leaving a faint smear of precum on her wet skin, and her pussy brushed his thigh, the heat of her arousal palpable even under the spray. Their kisses had softened, but the air crackled with an unspoken shift, their breaths mingling in the damp heat.
June pulled back, her blue eyes glinting with mischief as she dragged a hand down his chest, nails grazing his nipple, making him shiver.
“You’re filthy, Jack,” she purred, her voice low and teasing, wrapping her fingers around his cock. The soap made her grip slippery, and she stroked him slowly, her thumb circling the thick head, smearing the bead of precum that welled up. “Getting hard for your mommy like this—such a naughty boy.”
Jack groaned, his head tipping back as water streamed over his face, his dark hair plastered to his forehead.
“Fuck, Mom,” he rasped, his hips bucking into her hand, the word slipping out raw and needy. “Can’t help it—you’re too damn hot.” His hand slid from her ass to her pussy, fingers brushing her smooth, hairless lips—still flushed and swollen from earlier—before slipping between them, finding her clit with a practiced touch.
She gasped, her free hand gripping his bicep as her thighs parted slightly, giving him room. “Oh, fuck mom sounds like a good idea,” she laughed breathlessly, her tone playful but edged with heat, stroking him faster, her fist tightening around his shaft. “Talking dirty to me like that? What’s my baby boy gonna do, huh? Jerk off to his mommy’s pussy all night?”
He smirked, his fingers circling her clit, then dipping lower to tease her entrance, feeling her slickness even under the water.
“Maybe I will,” he shot back, voice husky, sliding two fingers inside her, curling them against her tight walls. “Gonna make you cum first, though—love feeling you squeeze me, Mom.” Her pussy clenched around him, hot and wet, and he thrust his fingers deeper, matching her rhythm on his cock.
June’s breath hitched, her head tilting forward so her wet hair curtained her face, water dripping from the ends onto his chest.
“Goddamn, Jack,” she moaned, her hand pumping him harder, the soap sudsing up between her fingers as she worked his length, her thumb pressing into the sensitive underside of his glans. “You’re so big—my little stud, fucking his mommy’s hand like this. You love it, don’t you? Knowing I’m all yours?”
“Fuck yeah,” he growled, his free hand grabbing her breast, squeezing the soft weight, his thumb flicking her stiff nipple. “Love how you take me, Mom—every fucking inch.”
His fingers sped up, plunging into her, his palm grinding against her clit, and she whimpered, her knees trembling as she leaned into him, her strokes on his cock growing erratic.
Their dirty talk spiraled, raw and intimate, mother and son lost in the heat of it.
“Such a naughty boy,” June teased, her voice breaking as his fingers hit just the right spot, her pussy fluttering around them. “Getting off to your mommy’s cunt—gonna cum all over my hand, baby? Show me how much you want me?”
“Gonna cum so hard for you,” Jack panted, his cock throbbing in her grip, the pressure building as her fingers twisted around his head, slick and relentless. “Love your pussy, Mom—fuck, it’s so tight—wanna feel you cum with me.” He crooked his fingers, rubbing her G-spot, and she cried out, her body jerking against his.
“Oh, fuck—Jack, baby!” June’s orgasm hit, her pussy clamping down on his fingers, pulsing as her juices mixed with the water, her hand faltering but still stroking him. Her head fell against his shoulder, lips brushing his neck as she moaned, “Cum for me, sweetie—give Mommy all that hot cum.”
Her words tipped him over, and Jack groaned, deep and guttural, his cock pulsing in her fist as thick ropes of cum shot out, splattering her belly and thighs, the white streaks stark against her flushed skin before the water washed them away. “Fuck, Mom—love you,” he gasped, his fingers still inside her, feeling her aftershocks as his own release shuddered through him, his knees nearly buckling.
They clung to each other, panting, the shower’s spray rinsing away the evidence of their climax as their hands slowed, then stilled. June pulled back first, her grin lazy and satisfied, cupping his face to kiss him—soft, deep, her tongue teasing his with a lingering playfulness. “Good boy,” she murmured against his lips, her thumb brushing his jaw, and he chuckled, kissing her back, his hands sliding up her sides, tracing the wet curve of her ribs.
“Love you too,” she whispered, stepping back to grab the soap again, lathering her hands. “Now let’s actually clean up—you’re a mess, baby.” She washed him again, her touch gentler this time, suds trailing over his chest, down his abs, and around his softening cock, her fingers lingering just enough to make him twitch. He returned the favor, soaping her breasts, her stomach, her ass, his hands reverent as they glided over her, rinsing away the last of their grime and cum.
They stepped out, toweling off in the steamy bathroom, their skin pink from the heat. June wrapped her towel around her chest, but Jack stayed bare, his damp hair sticking up as he followed her to her bedroom, the hall cool against his flushed body. She dropped the towel by the door, sauntering to her bed—a wide, soft expanse with a navy comforter—and slid under the covers, her naked form disappearing into the sheets. She patted the space beside her, her eyes warm but commanding. “In, Jack.”
He didn’t hesitate, slipping in beside her, the sheets cool against his skin as he pressed close, their legs tangling, his arm draping over her waist. Her breasts brushed his chest, soft and warm, and he felt her breath on his shoulder as she nestled into him, her hand resting on his hip. “No clothes tonight,” she murmured, her voice sleepy but content, her fingers tracing lazy circles on his skin. “Just us. It's been too long since I woke up next to a man.”
Jack grinned, his cheek against her hair, the scent of her shampoo—floral and faint—mixing with the clean smell of their skin.
“I guess I can't convince you to slip into the garage and cuddle up on concrete,” he agreed with a chuckle, even if it would be nice to actually wrap himself up with his sparkmate and mother together, his voice low, pulling her tighter as his cock rested soft against her thigh, spent but still warm. He thought of his girls—June, her fierce love, and Arcee, her strength and playful trust—and a quiet awe settled over him. Fuck, I’m lucky, he thought, his mind drifting as his eyes closed, the weight of them both grounding him along with that of his distant child, knitting together this very instant in the gestational pod at the Authobot's base. “So damn lucky.”
June’s lips brushed his collarbone, a final kiss before her breathing evened out, and he followed her into sleep, their naked bodies entwined.