My mind is seeing this as a chance to build a great personal routine. I mean come on, run with this.
I do MMA, in fact I was thinking you would make a great MMA fighter.
Her: oh no I wouldn't..lol.
Option 1: Look at those legs, those are gymnast legs you could kick the crap out of someone.
Option 2: You seem dangerous to me, let me see those arms, (squeeze them). Wow, impressive, the are harder than mine. (have her squeeze yours.)
Her: You have nice arms
Transistion: Ok, let me show you a move (turn your back to her show her how to apply a rear naked choke on your and hamm it up. Call for security or even better your mom.) Oh my goodness you're a natural bad ass. Now are you all brawn and no brains, I hate meat heads. (sly smile)