Quickly deciding, He picked up Alice before laying her back down on her chest. She stopped resisting, having realized he was stronger than her anyways. He held her down, and spread her butt cheeks, shoving his penis into her. He felt the flesh of her butt morph onto his penis, as she was slid further down.
His balls retracted into himself, her butt taking up the space they previously took, and he felt as the tip of his penis was merged with the flesh inside her anus, the head remaining intact; He could surprisingly feel small bits of poop in there after it. His senses merged with hers, allowing him to feel all of this from her perspective. He could feel her confusion, and hear thoughts that are mostly questioning what is going on.
He could feel as she tried to push off of him, and he let go of her, letting her hang there. She stopped trying to get down, only a few quiet words coming out of her mouth. "I gotta Peee!".
He went into her bathroom, her weight slowing him down slightly as he tried to find the toilet for her to pee into. Seeing one, he ran to it and sat down, pushing himself back as far as possible as he tried to let Alice go. He could feel her adjust herself as best as she can as she went. Only one thought crossed his mind as they sat here; "This is awkward."
She finished up, Jeff feeling her butt move as she seemed to try and poop as well before realizing she can't. He stood up, Alice grabbing toilet paper to wipe herself. He felt weird, and he could tell she was still confused. Alice was pulled down, and he decided he should probably try putting underwear on... This could be extremely weird..