Gemma knew exactly what was happening to her older sister. In the recesses of her memory she recalls her changed facial features and the fur covering her face. She should have seen it sooner. Somehow, someone or something was causing Amber to transform into what appeared to be a male donkey or horse, judging from the size of her penis. She shuddered at the though - penis. Oh how good it looked, it must of been 8 inches in length. She took her hand and started to rub herself. "That lucky bitch" she thought. She's actually transforming. For many years now amber has had a transformation fetish, getting off on the thought of people turning into animals, and until today it was only a thought. Today was her chance.
A wicked smile flashed across her face as she devised her plan. All she had to do was seduce her clearly horny sister, and hopefully convince her to tell her everything. Maybe she'd even get the chance to fuck her! Luckily for her, she had just bought some brand new lingerie, perfect for this occasion. She hurriedly dried herself got dressed and slipped her dressing gown over top. Making her way down stairs she saw her sister sitting on the family couch, breathing heavily, she'd removed her disguise and now her changes were fully visible. Her entire body was covered in a thin layer of hair, light brown in color. He ass had swollen and was notably larger and from behind her came a short tail, writhing on the couch. Her hands and feet were notably larger and darker, well on their way to become functional hooves. Atop her head sat two large donkey ears framing her change facial features. Her face was very clearly pushed out forming more of a muzzle than a human face. But to top it all of, between her legs sat an 8 inch flaccid penis, making it's way slowly back into it sheathe, a feet that came across as being rather difficult in her state.
Now, what does Gemma do?