Ladies - how does this feel and Men - why or when would you do this to a woman?

I've done it to be more intimate. I could see someone doing it in anger, but I NEVER touched a woman while I was angry with her - I'm so much against any form - small or great - of physical violence you wouldn't believe it. I'd come a lot closer to forgiving my wife for having sex with another man than I would forgiving her for hitting me in anger. I have zero tolerance for physical abuse.