Rob, my co-worker, left his cell phone on my desk at work so I stopped by his house to return it. I noticed he had an erection and he told me he was jacking off prior to my arrival. He was a bit embarrassed so I let him know it was ok and that I was feeling horny myself so I started teasing him and undressing and told him he could jerk off but no touching me. I coach him on how to whack his cock off good.