A Form of working out, without having to lift free weights nor running or swimming. No actual gym. The Skin Gym is when get it. ...sex > instead of physically going to the gym and lifting, running, bla bla bla you have extra physical activities with partner at your discretion. You still have a gggreat workout... if you do it right. climax people climax!
I hit the skin gym instead of going to the sports club yesterday