"Fuck me!" Laura said, her palm hitting her forehead.
Samantha smiled, lust in her eyes. "With pleasure, but first you need to-"
She was cut off by a loud moan from where Jason sat on Laura's bed. The girls turned just in time to see Jason's cock, hard as a pipe and aimed straight up, flex then fire yet another cum stream where it plastered the ceiling.
"Jason!" Laura yelled, a mix of annoyance and amusement in her voice. She betrayed her true mood by moving her hand from her palm to her mouth as she began laughing.
"Nnnnnnnnnnngggggggg sooorryy!!" Jason said through gritted teeth while his massive penis just kept seizing and blasting. Little by little his cock quieted leaving him sitting on the bed, drenched in his own seed while more dripped down on him from the ceiling. He began to stand but Laura and Sam both stood before him, blocking his movement. Suddenly Jason found himself staring at two muscled women, one statuesque and athletic, the other tiny in stature but stupendously buff.
Laura leaned forward, closing the great distance between their faces. "You can just sit right there in the..." she glanced up at the puddle above them. "...cum shower of your own making. If you can't figure out how to handle that thing, then we might just have to take it away. Right Sam?"
Samantha folded her beefy arms across her massive chest just below her breasts, pushing her melons up to her chin. "Or show him its proper use."
"I'm sorry, I'm sorry," Jason was still catching his breath. "I can get a grip on it, I promise. Look, look, it's going down. See? Even with you two right in my face being all dominant and hot I can put the best to bed. It just feels so good, it's hard not to give in."
The girls watched Jason penis lower until it was hanging down, pointed at the ground. Still, in its relaxed state it was a good nine or ten inches long. Samantha smiled to herself, over the moon with the amazing gift they'd been given. Jason's new minimum size was his former maximum, and they'd only just begun to play. How far could they go?
Samantha tensed her new muscles feeling the incredible girth she carried everywhere. She felt the power flowing through her body and let herself enjoy the pleasure that came with it. Her enhanced breasts tingled, her nipples alive like lightning rods and sending warm bolts all through her soft globes. A little concentration and she found she could amplify the feelings, both of power and electricity, flooding her body with pleasure. In an instant she heard Jason's words in her mind: it's hard not to give in. It was true, she could have that same explosive orgasm right now, she was already right on the edge. It was Jason's words that brought her back, though, as she realized she needed to exert the same control she was asking of him. But fuuuuuuuck did she want to give in. All in good time.
"So," Sam said returning her attention to Laura. No easy feat since her friend now towered a foot and a half taller than her. "As I was saying before we were interrupted: "I'll be happy to fuck you, but first you need to pump those tits up. And you should know that as good as this feels," Samantha flexed her mighty 16 inch biceps, "these feel even better." She hefted her chest shook her boobs a bit. "And, oh man, the two of them together..." She let out a soft moan.
Laura was grinning and looking at her phone. "Alright, alright, you sold me. I still need to catch up to you on the muscle front, but I'm excited to surpass you and my sister in a single bound. I'm starting at the bottom with an A-cup so ten moves me to a-"
"K-cup," Jason interrupted. Sam and Laura both noted that he was holding his hands up, clearly having just counted his way up.
"K it is," Laura said. She was nodding at the screen. "Damn, not what I expected. Okay, here we go."
Laura set her phone down then immediately let out a shocked yelp. "Oh! Oh fuck!" Laura's shoulders shot back and her chest pushed forward, seemingly against her will, and as it did her breasts began to sprout a bit with each spasm. A little at first, then full cup sizes at a time. About halfway through her transformation Laura's knees gave out and she collapsed into a twitching lump. Oddly, Laura was smiling because now that she no longer had to focus on trying to stand she was able to just enjoy the feelings. She was experiencing the same electric sensations as Samantha, except she had a bit more breast tissue to stimulate.
Unlike Jason and Samantha before her, Laura didn't have a choice as to whether or not to give herself over to the pleasure that was ravaging her body, an orgasm exploded within her, then another and another, before one could even end another was beginning. Laura found herself lost in them, floating near unconsciousness, her body twitching.
Slowly her senses returned to her; she realized she didn't know how long she'd been laying on the floor. Her transformation had ended some time ago and she'd just been drifting through the pleasure. She managed to pry her eyes open and regain some focus, her smile broadened when she spotted Jason and Sam sitting next to each other and making out. Jason's hands were exploring Sam's body, bouncing back and forth between sculpted ridges and swells of her muscles to her big, round boobs then back again. Sam had a hand on Jason's rod, sliding it up and down the full length.
Clearly they got bored of waiting for me to return to reality. No matter. Laura thought. While the pair got frisky Laura got to her knees, then slowly stood up, and up. She'd forgotten how tall she was and a slight wave of dizziness washed over her. Now fully upright Jason and Samantha turned to see her and their mouths dropped open.
"Not bad, right?" Laura asked. She put her hands on her hips and twisted her torso back and forth letting her friends see all sides of her new, magnificent breasts. They were undoubtedly huge, but with Laura's tall body and muscular shoulders, they somehow managed to suit her.
Sam stood up, face to face with a boob that was literally the size of her head. "You're a fucking Amazon!"
Laura laughed then hit a double biceps pose. Her guns were more sleek than Samantha's cannons, but her muscles were undeniable. Baseball sized biceps sprouted and her shoulders hardened into capped masses. "Not yet," she said looking from arm to arm, "but this is a damn good start."
Laura dropped her arms then decided to try something she'd always dreamed of being able to do. She flexed her pecs, then began flexing one at a time. She quickly got the hang of the sensation and began quickly bouncing her pecs one then the other sending her massive tits flying in all directions. Laura let out a moan. Eager to give it a try herself, Samantha began practicing bouncing her pecs as well. It took her slightly longer but she managed to work out the mechanics and found it quite enjoyable as well. Before long both girls were bouncing the boobs while moaning and giggle up a storm.
"You girls keep doing what you're doing and I'll go ahead and take my turn." Jason said. He picked up the quarter thinking, Heads for muscle, tails for dick. Please be heads, please be heads. His lips even began to mouth these words please be heads, please be heads, please be heads...
He closed his eyes and tossed.