Pretty quickly, something stood out to him- he finally got a proper look at his large erection. It stood 7 inches long, and its dark flesh appeared even thicker and firmer than Ty's had. Ty could tell Eileen seemed transfixed by it in their shared mind. "Are you OK?" he asked.
"Yeah, it's just... so weird to have this..." she replied. Their body's hand moved to it instinctually, and he breathed more heavily as he touched his shaft carefully, twinges of pleasure passing through him.
"Ohh, you've never felt what it's like for a boy to masturbate, have you?" realised Ty. "I guess that'd be fun to try in this body..."
With his acceptance, their body's fondling of its penis escalated into masturbation. He stroked himself eagerly, feeling the waves of arousal and ecstasy build up more and more by the second. His hips shifted and he panted and bit his lip as the motions grew faster and more eager.
In their minds Ty and Eileen heard each other's aroused moans as they reveled in the pleasure this body gave them, which felt strange and yet intensely pleasant, sort of drawing them into this alternate self.
What really stood out to Eileen was how it emphasized to her this new form's manhood. She imagined not only handsome men with large thick cocks to fuck her, but beautiful women with big soft tits and pussies she could fuck, in the context of the male body she inhabited.
On the flipside, Ty was suddenly aware of an attraction to men which this new self had, and which he guessed was drawn from Eileen- not that he minded, the attraction to men felt enticing and different, kinda more fitting to the person they had become.
Soon he groaned as their orgasm came upon them. They saw him cum hard, semen shooting over his palm and dripping onto the bathroom floor. Panting as they came down from the high, Eileen thought of another wish she wanted to try...