Lily Allen hates men who are "selfish in bed".
'The Fear' singer - who lashes out at the opposite sex on her new album 'It's Not Me, It's You' - claims most men only think about their own needs in the bedroom.
She said: "I just think some guys are quite selfish, and men generally are more selfish in bed than women because they know how it's going to end. We don't!
"They are pretty useless. I think that maybe if guys were just a bit more honest about things, we wouldn't get so angry."
The 23-year-old singer also insisted she was not being serious when she said she wanted to marry for money.
She added to New! magazine: "I don't. I was just joking when I said that. I want to marry someone that I love."
Lily - who has previously dated 45-year-old art dealer Jay Jopling, Chemical Brothers star Ed Simons, 38, and DJ Seb Chew, 32 - has previously claimed she would end a relationship if the sex was bad.
She said: "If they are no good at having sex then it really upsets me.
"I think, 'God, this is someone I'd like to spend the rest of my life with. But I cannot face having bad sex.' You've either got it or you don't!"