RihannaEsquireCover230.jpgRihanna has been named this year's Sexiest Woman Alive by Esquire, and in her interview, she's not afraid to talk about sex ... or about Chris Brown.

The singer, who poses nude for the mag, explains the much-talked-about sexy dance moves that seem to dominate her performances these days. "There's a section that's called 'Sex' in the show, which is the obvious section for sexuality," she says.

And she opens up about her one-time lover, Chris Brown, who infamously physically abused her in early 2009 -- and says she holds no ill will toward him.

    "It's incredible to see how he pulled out of it the way he did. Even when the world seemed like it was against him, you know? ... I've always been a fan. ... I had some resentment toward him for a while, for obvious reasons. But I've put that behind me. ... I'm really excited to see the breakthrough he's had in his career. I would never wish anything horrible for him."