Ty blushed as he heard Eileen ask for what he'd been offering. "You'd be OK with it?" he asked. "I thought you only liked men..."
"I'm coming round to wanting to have sex with a woman," Eileen explained. "And I know you'd make the perfect woman," he added, cupping Ty's cheeks teasingly. "So... do you wanna turn into a girl?"
Ty nodded, still blushing hard, looked down at himself and took a deep breath. He focused on the wish, convincing his body to turn into a girl's.
Just as Eileen's had, his breathing quickened as his body filled with feminine hormones that set about reshaping it. "I s-see why you liked how this felt so much," he managed to say before whimpering as his body altered.
His muscles turned more lithe and slunk inwards, his hands and feet more petite, and his figure slimmed so he had narrower shoulders and a curvy waist but wider hips. He felt a clenching in his throat as his larynx shrank and his voice became higher-pitched, and a shiver passed all over him as his facial features and his skin softened, turning largely hairless and smooth to the touch.
The most intense sensations were now taking hold as Ty's changes reached his genitalia. As warmth built up in his chest and crotch, he said in her girlish voice, "Holy shit, I'm gonna be a girl." Sure enough, his nipples swelled and grew puffy and sensitive as he developed mammaries, and he felt his testicles pinch up and then slip inside him as his emasculation took hold. He gasped as soft mounds swelled on his chest- these were breasts! His breasts? No, her breasts. Further down his penis shrank away while staying hard and erect, and his scrotum sank inwards and peeled open down the middle, until soon they had formed a clitoris and vagina.
Ty was slowly coming to her senses when she felt Eileen kiss her passionately, and her body's arousal response kicked in. She felt her nipples and clitoris grow intensely hard and her pussy start leaking female juices. When his hands gripped her wrists and she felt his penis rub against her stomach, her arousal intensified. "I told you you'd make a perfect woman," he grinned.