No

You tell her you won't back out and aren't scared of her. Sure, her legs may be thick, but there is no way they are that strong, right?

She smirks "Good, it would be embarassing if you were scared of your little sister, wouldn't it? Bring it on" She says as she drops to a wrestling stance, waiting for you to make the first move.

You mimic her stance and watch her closely, hoping she makes the first move so you don't have to but she is patient and keeps waiting for you to attack.