He could feel the furry tail touching the tops of his buttocks as it flourished. He knelt there, while Amber approached him. He looked at her with a pleading gaze, his ears flattened in submission, even though he did not know he was doing this.
"Oh, Ben…look at you! You're a jack ass."
"I'm not a jack ass!" he yelled growing angry.
"You are…look, you're growing a tail! Men don't have tails! You do, you're becoming a lovely donkey…" she then pulled his tail and twirled it in her hands, feeling the tassel at the end with her fingers. Then Jennifer pulled his pants and shoes from him, exposing his bottom half completely. He pulled away from her, getting to his feet again. But now something felt odd - his feet had grown in length. The tendons right up the back of his legs into his butt were tight forcing him to stand on tiptoes. He tottered uneasily.
Jennifer said, "Look, he can't stand on two legs any more!"
I can I can! Went through is brain, but looking in the mirror he saw his legs were all out of proportion. The feet were long, the shins short and the thighs flat and muscular. They were looking like hind legs! He couldn't have hind legs; he just had two legs - but the tail above his larger hairy butt made him see it was true. But that could mean that his arms would soon become forelegs. At the moment he only had hair crawling down from his shoulders - his hands were unaffected, be they a little darker. He had to get out now - but his balance was off, his torso longer his rib cage bigger pulling him forward. He knew he mustn't fall, but the forward weight was unbelievable - he felt himself fall and he fell to his hands and knees. The girls laughed with manic glee as he displayed asinine buttocks in all their hairy glory, crowned by that tail. They could see his toes were darker too- their transformation into hooves was beginning.