Ty woke up the next day with his body reverted to its male form, but still full of lust for Rebecca. He sneaked out of the house, went next door and knocked on the door. When Rebecca came down and answered it, she kissed him passionately, and pulled him upstairs to her room. Once there, she shut and locked the door, sat atop him and breathed, "I need my cock back."
Hearing her say that made Ty hornier than he could ever remember being, and his erection rubbed her slit through the fabric of his jeans and her sundress, both of them shivering. The two kissed again messily, too horny to focus on anything right now. When Ty finally could focus, he panted, "Becca, did you... touch yourself last night?" She nodded. "Same," he admitted. "What did you imagine?"
"I imagined being big and firm and strong and muscular," she replied. "I wished I could put myself inside people, and fuck them up. I... I wanted to fill you with cum." She bit her lip, wishing his shaft was hers. "Oh god, I want to be a boy again."
Her saying all that was giving Ty feelings he'd never felt before yesterday. "To be honest, I... I turned myself into that girl again last night. It's so different for me, the physical sensation of having something in me, having someone pleasure me like that, wanting something to fill me... I was imagining you fucking me up..."
Rebecca cut him off by grabbing his neck in her dark hands. "I want to do it, then," she smiled. "You fucked with my sense of gender, I fucked with yours, so we should fuck each other."
Ty smiled and said...