Chapter 1: Introduction
The starlit night loomed above us, the cosmic void as timeless as our fascination with it. Shane rushed into his bathroom as Erika lay motionless at the surprise excited. "Everything, is fine," Shane embarrassingly said, as he lifted his t-shirt revealing two large breasts. "What the fuck?" Shane exclaimed, staring at his reflection in disbelief. His cock was still hard, throbbing against his thigh, but now it was accompanied by a pair of perky tits that had no business being there.
"Shane? Everything okay?" Erika called out, concern lacing her voice.
"Yeah, just... give me a minute," Shane replied, trying to wrap his head around what was happening. He tentatively touched the strange mounds, feeling their softness, their warmth.
They felt real, too real. "Oh, my god... what just happened?" Shane said looking the mirror, and said rather loudly. The attractive brunette, on the other side of the door chuckled, "Well, I hope everything down there is still working." She promptly opened the door to surprise him, only to catch a glimpse of what is happening . "Holy shit, Shane! What the hell is going on?" Erika gasped, her eyes wide with shock and curiosity.
Shane quickly grabbed a towel, wrapping it around himself, "I don't know, Erika. This has never happened before. I mean, I've always been curious about women, but this... this is something else."
Erika, intrigued, stepped closer, "Let me see." She gently pulled the towel away, revealing Shane's new assets. Her fingers traced the curve of his breast, making Shane gasp at the unexpected touch. "Fuck, Shane. These feel real." She huffed, "What the fuck happened. You, have breasts are you trans?" Erika blurted out, first squeezing his breasts, then pressed her palm flush against Shane's cheeks, "Or is this something else?" Shane blushed, partly from embarrassment, but mostly from the arousal coursing through his veins. "I-I don't know, Erika," he stammered, "All I know is that every time I get turned on, this starts happening."
"Oh, really?" Erika's eyes sparkled with excitement as her hand found its way to his hardened length. Shane gasped, hips bucking as she began to stroke him. She moved her hand, and within a few twists of her wrist Shane moved his hips backward, "Ugh, stop.." his knees buckled as his penis shrank then slid. Erika covered her mouth in disbelief as Shane's crotch turned into a vagina. "W-what the heck?" Shane stuttered, "Where did my penis go?" Erika, eyes wide, uttered a barely audible, "Holy shit!" She said slowly stepping out of the bathroom. She was surprised and horrified at the same time, "Shane are you okay?"
"I think so," he replied, his voice strained. "It's just... I don't know what's happening to me."
Erika approached him, her fingers gently tracing the curve of his newly formed breast. She saw the arousal in his eyes, the way his breath quickened as she explored his body.
"Do you want me to leave?" she asked softly, and Shane shook his head.
"No, stay," he whispered. "I... Think if I settle down things will go back to normal." He took a deep breath trying to calm himself, "Let's, just go to the bed." Shane explained. Erika followed him feeling a bit concern. "This must be some sort of lycanthropy or something, but it happens to you sexually?" Erika asked intently, as she lay beside Shane upon the crumpled bedsheets of his dorm room. She caressed his cheek, "Because, you don't seem like a werewolf."
"I have no idea what it is," Shane admitted, breathing heavily, sweat dripping from his forehead. "All I know is when I get turned on, I shift into this- into a woman. At least partially."
"Shane, I've read of these sort of situations." Erika smirked, she spoke calmly to her friend doing her best to comfort him, "It's only been happening recently. It happened a few weeks ago while masturbating. I didn't think much of it, but tonight it was different, much different." Shane said as he took a deep breath, and his penis started to came back, his stomach bulged slightly as his erection returned to its usual state.
"Holy fuck, Shane!" Erika exclaimed, eyes wide with wonder and a hint of desire. She reached out tentatively, her fingers brushing against the head of his cock, in amazement. "So it's a partial shift?"
"Yeah, as I get more and more aroused, my body changes. I can't control it." he replied, his breasts remained. "I will let you in on a secret. I've always wished I could have a penis..." Erika admitted looking at Shane who was focusing on calming his body . His penis was now fully back, and his breasts, although still present, were smaller in size. Erika's eyes widened as she stared at his manhood, longing to touch it once more.
"No, don't..." Shane told Erika