Playboy Playmate Kennedy Summers -- FantASStic in Tights (PHOTO GALLERY)

If Kennedy Summers' bod just made your jaw drop, don't worry ... we've got more where that came from.

The Playboy Playmate flaunted her balancing skills -- and that ASS -- during a workout sesh with her trainer at an L.A. gym. We'd normally say check out the pics ... but we are guessing you're ahead of us.