Roll the dice!

An animation of some dice rolling plays on the screen and the sound of them clattering on a table fades into the drumroll as the world fades to white. When the cymbal crashes you look over at your sister, whose outfit has changed into a bright blue and silver leotard. Her arms and legs are bare and her blonde hair is pulled back into a ponytail. She looks a little bit more toned than before. It takes you a few moments, but you also notice that the uniform is very tight on her - tight enough, in fact, that she's displaying a huge cameltoe.

You notice a card in your hands - it reads "Gymnastics Buff" across the top. "Clothes change to form-fitting gymnastics uniform. Will perform routines when the name is said." Hmm.

"What does it say, bro?" your stepsister says, tugging at her tight uniform, especially around the crotch. It never gets any better.

"Hey, Sarah, can you do the splits?" you ask. No sooner have you said it than she's hit the ground, long legs flying out to either side of her. She's definitely way more toned than she was before. You can also see the covered outline of her labia press against the floor as your sister winces, her face flush with embarrassment and possibly a little pleasure.