What starts as encouragement and coaching toward building muscle turns into a deeper, intimate desire to sniff, taste, and fuck each other's bodies. A beefy step dad catches his son sniffing his sweaty jock and invites him to go in for the real thing. He opens his pits and nuts up to his horny boy, getting him face to face with his massive boner. His big cock seems more than the young jock can handle, but, like working out, it's all about encouragement and support. This furry daddy is never prouder of his boy than seeing him take his thick dick deep in his tight, smooth hole.