Do you enjoy biting and being bitten?

Dont know why, but last week when I was with my girlfriend I had the urge to bite her (we both had quite a few drinks that night!)

She enjoyed it a lot....could feel goose pimples all over her body. I bit her neck, back and bum....gently at first, then harder. Didn't mark her too badly...although her bum had two love bites that were there the next day.

I can remember one lass I was seeing a while ago who absolutely loved being bitten very hard.

How many of you out there get turned on by biting or being bitten? How hard?