Supervillain Idol System: My Sidekick Is A Yandere-Chapter 504: Path Chosen (Part 8) (R-18)

After leaving Samantha's office, Don made his way down the hallway toward Summer's room.

He stopped at her door and knocked.

Unlike the office, there was no clear noise from inside. All the bedrooms were soundproofed by design. Even with his hearing, it took effort to push past the dampening layers.

What slipped through was faint but familiar.

Live electricity.

A low, audible hum—like a workstation left half-awake.

A few seconds passed.

The door slid open.

Summer stood there with a deep frown, mid-sentence.

"Mom! I already said I'm not hung—"

She froze.

Her eyes landed on Don.

The frown softened into a pout almost immediately.

"Oh…" she muttered. "It's you."

She wore a cropped vest and tight shorts, socks pulled up to mid-calf, her hair tied back into a ponytail that had clearly seen better minutes. Her tone lost its bite as her gaze flicked up to his face—then away.

"W-what do you want?" she asked. "I'm busy…"

Don smiled.

She was terrible at pretending she wasn't glad to see him.

Truth was, he was just as relieved. Between his training, her schoolwork, and whatever she disappeared into during her spare time, they'd barely crossed paths outside rushed meals. And even then, he'd been too tired to linger.

He wasn't letting that slide today.

"Too bad," he said, stepping forward.

"Hey!" Summer protested. "I didn't say you could come in."

The door slid shut behind him—shkk~.

Don took in the room with a quick sweep. Tools covered the desk and nearby shelves. Cables lay half-coiled, some disconnected, others feeding power into devices still running.

On the bed, Trixie slept in her cat form, curled into a neat ball, tail flicking once before settling again.

Summer moved in front of him, planting herself there. Even standing straight, she barely reached his chest.

Hands on her hips.

"Hey."

Don didn't answer.

His attention shifted past her—to the desk.

Sitting there was a large mechanical gauntlet. Bulky, unfinished, plates partially open to reveal inner housings and segmented wiring.

Tools surrounded it—cutters, microdrivers, spools of wire. One cable ran from the gauntlet into a laptop, its screen filled with rotating blueprints of the same device, layers of notes and measurements stacked along the side.

He stepped toward it.

"What's this?"

He reached out.

Summer darted in front of him, arms stretched wide.

"Don't touch anything!"

He stopped, amused.

"You'll mess it up," she added quickly. "Or break something."

Don smiled as he looked her over—slow, unbothered—before stepping closer.

She backed up without meaning to, her lower back pressing into the desk. Her frown deepened, heat rising into her cheeks.

"I'm serious," she said. "I'll tell mom…"

He tilted his head.

"I didn't come here for your funny toy."

Her breath hitched.

Before she could respond, his hands settled at her waist—bare skin warm beneath his palms where her vest had ridden up.

Summer flushed harder, eyes darting away.

"W-what do you mean…"

Don leaned in, closing the gap. She didn't pull away.

"You know exactly what I mean," he said quietly.

He drew her closer, her chest pressing against him, the heat between them impossible to miss. Summer swallowed, fingers curling lightly into his shirt, more from instinct than intent.

Don lowered his head toward hers, voice softer now.

"I just missed you."Summer looked down, lashes fluttering as her breath came faster. A bead of sweat trailed down her temple, her pulse jumping under his fingers where they still pressed into the soft dip of her waist.

"I... missed you too, I guess."

The words came out muffled, half-swallowed, her bottom lip caught between her teeth the second they escaped.

Don huffed a quiet laugh against her cheek, his nose brushing hers. "Not so honest, I see."

Then his mouth was on hers—mwah~—hot and insistent, swallowing the tiny mmfph~ she made when his tongue slid past her lips.

Summer stiffened against the desk with a small thunk as his lips crashed into hers—eyes flying wide for one breathless second before fluttering shut.

Her fingers twitched against his shirt, nails digging tiny crescents into the fabric as his tongue pushed deeper.

A shaky exhale escaped her nose, warm against his cheek, her body arching slightly when his hands slid down to grip her thighs—rough palms scraping over smooth skin.

Mm~ Her own hands finally moved, clumsy as they fisted in his collar, pulling him closer while her hips pressed into the sharp jut of his.

Don broke the kiss after a few seconds with a wet smack~, their lips lingering just a breath apart.

Summer's chest heaved against his body, her breath coming in short, hot puffs against his mouth.

Her lashes fluttered open—blue eyes glassy, pupils blown wide—only to dart away the second their gazes locked.

"W-what was that for…?" she mumbled, voice thick, lips slick and swollen.

He brought one hand up, calloused fingers brushing her cheek before tilting her chin back toward him.

"I told you," he murmured, thumb dragging over her bottom lip, smearing the wetness there.

Summer's cheeks burned crimson, the flush spreading down her neck as she refused to meet his eyes. Her fingers twitched against his shirt, damp palms leaving faint wrinkles in the fabric.

Don smirked, tilting his head. "Do you want me to leave?"

Her breath hitched—a tiny, shaky inhale. "...N-no," she mumbled, barely audible, her teeth sinking into her already swollen lower lip.

The corner of his mouth lifted. "Turn around for me."

Her eyes snapped up, blue irises flickering with something between panic and curiosity. "W-what for?!"

He dragged his thumb across her hipbone, slow. "It's a surprise."

Summer frowned a little, her nose scrunching up as she shot him a wary glance. "F-fine... but don't do anything funny."

Don pulled away just enough to give her space, his hands lingering at her hips before sliding off with a slow drag of his palms. "But of course."

She gulped—her throat bobbing visibly—before turning around, her socked feet shuffling against the floor.

Her arms crossed under her chest, fingers digging into her own sides, pushing her breasts up just enough to make the cropped vest ride higher.

The hem barely clung to the bottom curve of her ribs, exposing a sliver of smooth, flushed skin.

"L-like this...?"

"Yea, just like that," Don murmured, his breath hot against the shell of her ear before his hands slid forward, palms cupping the soft weight of her breasts through the thin fabric of her vest.

Mmh~! Summer stiffened, her back arching slightly as his fingers pressed into the plush flesh, thumbs brushing over the stiff peaks already straining against the material.

"H-hey! What are you doing—?!" Summer gasped, her voice breaking as his fingers kneaded deeper, the thin fabric dampening where his thumbs circled her nipples.

Ngh~ Her hips jerked back against him, the heat between her thighs pressing into the soft line of his pants.

"Showing you how much I missed you..." Don murmured, lips dragging up the flushed column of her throat.

Mmh~ Summer's fingers tangled in Don's hair, nails scraping against his scalp as she held him against her neck, his lips leaving hot, open-mouthed kisses along her pulse.

A-ah~ Her breath hitched when his teeth grazed the sensitive skin just below her ear, her hips rolling back against him with a slow, needy grind.

"J-just be gentle… okay…?" she panted, her voice trembling as his thumbs circled her nipples harder, the damp fabric clinging to her flushed skin.

Ngh~ The peaks ached under his touch, every brush sending jolts of heat straight between her thighs.

Don hummed against her throat, the vibration making her shiver.

Summer's hands slid down from his hair, fingers trembling as they pressed flat against the table in front of her. The cool surface did nothing to soothe the heat prickling across her skin—not when Don's breath was still scorching against her neck, his teeth leaving little marks that made her toes curl in her socks.

In the next moment, his palms skimmed up her ribs, rough fingertips catching on the hem of her vest before slipping beneath.

The fabric strained as his hands pushed higher, the stretch of material tight around her chest—then his fingers were on her bare skin, hot and greedy as they cupped the soft swell of her breasts.

A-ah~!

His thumbs rolled over her stiff peaks, rough pads catching on the sensitive buds as Summer's head tipped back against his shoulder with a shaky exhale. Ngh~ Her teeth dug into her plush lower lip, the pink flesh indenting under the pressure as his fingers squeezed—slow, passionate—the heat of her bare skin searing against his palms.

A-ah~ Her thighs pressed together, the damp fabric of her shorts clinging to the moist heat between them with every tiny shift of her hips.

Don's hands stilled for just a second—his breath hot against her damp neck—before his fingers hooked under the hem of her vest.

With one slow, timed tug, he pulled the fabric up, over the swell of her breasts, the material stretching tight before finally slipping past stiff, flushed nipples.

The second her bare skin hit the cool air, her breasts bounced free, the plush weight jiggling slightly before settling, pink peaks stiff and aching.

Summer's breath caught—a low, wet gasp—as the sudden exposure made her skin prickle, her back arching instinctively.

"O-ou—!"

Before Summer could fully adjust to the sudden exposure, Don's hands slid down—rough palms dragging over the quivering heat of her stomach—before hooking into the waistband of her booty shorts.

His fingers dug into the soft give of her hips, the fabric stretching tight as he tugged downward in one slow motion.

"H-hey!" Summer gasped, her back arching as the shorts slipped just past the curve of her ass, the elastic hem catching mid-thigh.

The sudden rush of cool air against her damp skin made her shudder, the thin purple fabric of her panties clinging to the heat between her legs.

Summer's fingers twitched, her hand lifting halfway—a weak, trembling attempt to stop him—but her breath stuttered the second his thumbs pressed into the soft dimples just above her ass, kneading the flesh as the shorts slid lower.

The elastic waistband caught for a second, clinging to the curve of her thighs before finally giving way, the fabric pooling around her knees.

The second her ass was exposed, Don's palms pressed against the plush curves, fingers digging into the soft flesh with a possessive squeeze. A-ah~! Summer's breath hitched, her thighs trembling as his thumbs hooked under the tight fabric of her panties, the damp material straining against the crease of her ass.

His fingers slid deeper, the heat of her skin searing against his grip as he kneaded the supple flesh, each squeeze sending jolts of pleasure through her.

The thin purple fabric clung desperately to her slick folds, the wetness already soaking through as his fingertips brushed dangerously close to where she ached most.

Summer's fingers dug into the edge of the table, knuckles whitening as the wood creaked under her grip.

Her breath came in short, wet gasps—huff~ pant~—as she glanced back over her shoulder, cheeks flushed deep pink.

Don's dark eyes locked onto hers, his hands still kneading the flesh of her ass, fingertips pressing just enough to make her thighs quiver.

"Spread your legs apart for me," he murmured, voice rough as his thumbs dragged along the crease where her thighs met her cheeks, the damp heat of her skin already slick against his touch.

'Does he want to... But I... am I ready?' Summer's thoughts tangled, her pulse hammering as the words left Don's lips.

A shaky breath escaped her—huff~—her thighs trembling where they pressed together, slick skin clinging stubbornly.

Yet even as doubt flickered through her, her body betrayed her, knees parting in slow, reluctant increments.

The stretch burned—ah~—her inner thighs glistening, the damp fabric of her panties peeling away just enough to reveal a thin, glistening trail winding down her flushed skin.

Don's exhale was rough against her neck, his fingers flexing against the soft swell of her ass.

"Good."

Don's palm rubbed slow, possessive circles over the curve of her ass. His fingers dug in just enough to make her gasp—ah~—the flesh yielding under his grip, dimpling slightly before springing back.

Then he leaned forward, his chest pressing against her bare back, the rough fabric of his shirt scraping over her damp skin.

His other hand slid down, knuckles brushing the trembling inside of her thigh before two fingers dragged up the soaked line of her cunt through the thin fabric of her panties.

Summer stiffened—ngh~—her back arching as Don's fingers pressed harder against her soaked panties, the damp fabric clinging stubbornly to her folds.

But instead of pulling away, her hips rocked back in tiny, desperate circles, grinding against his touch like she couldn't stop herself.

His lips brushed the shell of her ear again, breath scalding as his voice dropped to a rough whisper.

"Want me to make you feel good?"