He went to the bedroom to look at the medallion. It looked the same as before. Just then, another wave of nausea came upon Nick, and he decided to sit on the bed for a second. After it subsided, he could feel something odd. His nipples were rock hard and poking through his t-shirt. Then, he could feel a wetness between his legs that was suddenly familiar. He realized that this body felt horny. Nick wasn't sure why the medallion wasn't working, but he was sure that he was aroused. Remembering the pleasures from before, he started to think about those feelings, and how tempting it was to just reach down there and start rubbing... but no, he had to focus. That wasn't going to help anything, and might be part of why he wasn't transforming.
Still, it did feel really good, and there was nothing in the medallion's instruction note warning against masturbation... he wanted to feel that again, but he decided not to reach down. Then, suddenly, a warping of fabric swept around his hips and his jeans crumbled off, leaving behind some red panties with an odd bulge in front. Briefly, Nick thought that maybe his penis was returning, but then a buzzing started up and he felt a sudden tingling pleasure as he realized that the panties had some sort of vibrating device inside, with a ridged piece inside that lined up perfectly with Nick's clit, which was more than ready for stimulation.
Nick immediately collapsed completely backward onto the bed, paralyzed by the sudden waves of pleasure flowing up from his clit through his entire torso up to his neck, letting out a soft scream, followed by a whimpering moan of pleasure. Nick wanted to reach down and try to turn the vibrator off, but also didn't want the sensations to end. In moments, the silk sheets warped and formed around Nick's wrists, tying them down to the bed above and to either side of Nick's head. Nick didn't even notice as his shirt dissolved away, leaving Nick spread eagled on the bed, naked except for a vibrating pair of panties that was shooting tingling waves of stimulation all through that sexy body.
The moans and whimpers of pleasure escaping those lips were completely uncontrollable, and turning Nick on even more. Nick could recognize now the start of the orgasm beginning to build. For a brief moment, Nick wondered what it would feel like to be penetrated right now. A moment is all it took. Suddenly, she could sense a pressure down between those smooth, sexy legs, and Nick could feel something pushing in past her wet labia, stretching itself in to her well-lubed vagina, and then began to vibrate along with the clit piece. It was incredible. Nick's entire body began to vibrate, like some pulsing force of nature, the vibrations coursing up into her tits and nipples, and for a few seconds she wondered if it could go any further, when, like an eruption, everything exploded inside her, her whole body arched back, as a primal scream sounded out, at the top of her lungs, "Oh, GOD YES!!!"
Slowly returning to the world, she lay there, twitching uncontrollably every few heartbeats for what must have been close to ten minutes. The panties had stopped vibrating, and her hands were freed, but she did nothing but try to regain control of her muscles, panting lightly.
"That... was... incredible" she sighed. She had actually felt more alive than ever in her whole life. When she could, she sat up and looked in the mirror. Her hair was a mess, and her face flushed. She imagined herself in some regular panties and a t-shirt, and in moments it was so, the t-shirt form-fitting around her breasts and waist. She felt worn out and tired, more so than she looked.
She wanted to shower, but maybe investigating what went wrong couldn't wait...