Not everyone is into the same fetishes and she may not be into spanking. Either way if you want to introduce it to her talk to her about it first and start gently to get a gauge on it. You could try to make it up to her by letting her spank you next time.

If it ain't rough, it ain't fun ;)

Sexual violence without an agreed safe word = sexual abuse. Don't you mean "ex-girlfriend"?

#50- It's unfortunate that you had a bad sexual experience with your ex, but please don't take it out on every man you meet from here on out. Calling a man pervy for wanting to give his partner a tap on the butt, is more baggage then any man wants to carry around.

Not all girls are like that, I like it when my bf spanks me!

Ur girlfriend is weird!! I love it when i get spanked during sex. Whatever just Go easy on her next time she seems senstive

It doesn't seem like the OP gave his girlfriend "a tap on the butt." He hit her hard enough to make her cry. 50 has a good point; OP should have asked how his girlfriend felt about that sort of thing instead of just choosing to do it. Since he was only thinking about himself, it was clearly for his gratification alone.

Stick with the tried and true from now on.

Always ask. Amateur.

OMG get a life and stop being so sensitive. Go buy a *****..........they don't spank.