<human>: I am at a loss in this situation with me and husband's friend who admits the sex is so good, he can't deny her. We have been friends with these two since May of last year. They have been together for about a year and a half. They are not good together, they have both admitted it, and sworn to stay friends. He doesn't want to hang around with her because she has a tendency to get physical - we all have bruises to prove it (me and hubby from trying to break it up. She basically attacks him, but he never strikes back.). 

But when she comes around shaking her tail feather looking for a little action he's all up on it. He has mentioned such phrases as "she's all about it Heather Brooke style". I have an idea who Heather Brooke is but we have not ascertained if she's just that enthusiastic or if she can actually perform Heather Brooke style (aka deep throat).

Is good sex really worth all that? I might have answered my own post right there, but I'd love non-biased opinions.

Can you condense the text into three sentences or less?
<bot>: Help me understand friend who can't say no to 'best sex ever' even though he doesn't like the girl otherwise and she gets physically abusive?