He may be excited at idea of you cheating on him. A gf of mine did years ago and I got rock hard the minute she told me.

Also, I just didn't think it could happen to anyone past age 12. May sound dumb, but it's true. I also believed she'd get us inside any minute, and that I could at least wait that long. She told me...

Condoms are the worst. The spilling of semen into vaginal juices is beautiful and is part of the cement of intimacy. That is your love and respect, rather than prissy sterility.