Roomies

Your cock was still heavy and sensitive, twitching against your thigh in the cool exam room air, the taste of that intense session with Mahli’s warm hand and Keisha’s voluptuous interrogation still thick in your mind. The boys’ filthy encouragement from the group chat kept replaying—“Live stream it… bet she jerks you off… bigger dick gains…”—making you leak steadily.7

The door clicked open.

Doctor Stephie Glascock entered like a walking wet dream. Petite at 5’2”, with that tiny waist you wanted to grip, perky breasts pressing against her crisp lab coat, smooth thighs flashing beneath it. Her heart-shaped face glowed—soft features, full pink lips, and those piercing green eyes that drank in your naked, aroused body with open hunger. Blonde hair framed her perfectly. She looked like the kind of scientist who got off on watching her subjects transform.6

“Good afternoon, handsome,” she purred, voice melodic and dripping with heat. “I’m Doctor Stephie Glascock. Your results are delicious. That eager response to Mahli’s measurements and Keisha’s questions tells me everything. And that group chat with your boys? Mmm, I love when participants bring that energy.” She rolled her stool close between your spread legs, her small warm hand resting high on your inner thigh, thumb teasing the sensitive skin near your heavy balls.

She laid out the protocol—double-blinded hormone serums designed to flood you with androgens, sculpt muscle, spike libido, thicken your cock, and turn you into a peak stud. Then the lifestyle choices: Independent Living, Supported Optimization, or Full Immersion. “The serum hits hardest when you fully commit,” she whispered, leaning in so her perky tits nearly brushed your arm. “Especially if you bring a friend along for the ride…”

You chose Full Immersion. The words left your mouth and Doctor Stephie’s green eyes lit up with filthy delight. “Perfect. Everything controlled—24/7 monitoring, chef meals, shared sessions… you’ll be living here with us for maximum results.”

She stood, hips swaying as she prepared the injection herself this time. Her delicate fingers swabbed your arm, then slid the needle in with a smooth push. The serum exploded through you like liquid fire—rushing to your chest, your swelling balls, and straight into your cock. You groaned deep, shaft surging rock-hard and leaking profusely onto your abs as the warmth settled heavy and potent.

“Mmm, such a strong response already,” Stephie moaned softly, eyes locked on your throbbing erection. “Your balls are going to be so full… libido through the roof within hours.”

Just as the heat peaked, the door opened again.

In walked Jake: your tall, athletic best friend with that cocky grin, already in a clinic gown that did nothing to hide his own half-hard bulge. He looked flushed, eyes wide as they landed on you sitting there naked and leaking. “Holy shit, dude… you really did it. I… uh… might’ve signed up right after our chat too. Full immersion. Figured if we’re both getting turned into hung studs, we should do it together.”

Doctor Stephie bit her lip, clearly thrilled. “Surprise~ Your friend accepted the same protocol. You two will be roommates, sharing measurements, injections, training sessions, and sample collections. Side by side. Every inch monitored and compared.” She gave Jake a lingering look. “Strip fully, Jake. We’ll get your baseline started while your buddy’s serum kicks in.”

Jake hesitated only a second before dropping the gown. His cock sprang out already thickening from the sight of you and the doctor. Mahli slipped back in behind him, her thick curves swaying as she prepared to measure your best friend the same intimate way she’d done you. The room filled with heavy breathing and that sweet-musk scent.

Stephie’s hand wrapped lightly around your pulsing shaft, giving one slow, clinical stroke while she watched Jake get measured. “This is when the real fun begins, boys. Staying immersed together… feeling the hormones reshape you both… comparing growth every single day. Tell me how hard that makes you.”

Your cock jumped in her soft grip. Jake’s eyes were glued to the scene, his own dick twitching as Mahli’s warm hands worked his thighs and balls. The serum was already making everything feel electric. Two best friends, naked and hard in the clinic, about to transform together under the hands of these gorgeous women.