[xtube]JDGxd-G780-[/xtube]
Well, push-ups really. Is it so hard to find a meathead who will do them with his dick up your ass?
Apparently not. We've seen guys make butt-sex an abs workout, there's no reason why it can't also work on your chest and triceps. Just be sure to suit up with the proper gear like this muscle bear, who laces up his trainers and hikes up his socks before climbing aboard. He does some warming up before breaking out into push-ups, we wouldn't want him to pull anything, after all.
Fucked good and deep (Xtube)