Teen teases me at gym

First time shooter. The girl in shorts noticed my phone camera early on at the bench but didn’t care. They continued to dance around and show off as I followed around. At the end on the mats the girl in leggings tells the other she gets extra points if she shakes her butt while doing the stretch. Girl in shorts then rolls on her back and sticks her ass straight up, wish I could have caught that on camera. Maybe next time. More to come.