Soul star Toni Braxton is still holding out on accepting an offer to pose nude in Playboy magazine - because she's shy about flashing her genitals to the world.

The BREATHE AGAIN singer admits that while she has no aversion to showing off her breasts, she's a lot more reluctant to let fans see the rest of her.

She says, "(Playboy bosses) have asked. I haven't done it yet. I just can't do the bottom thing because that's really intimate and really personal.

"But boobies, what is it? A dime a dozen. You can buy some for $5,000. Who cares? But the thing down there, you can't really buy that, or can you? Do you know if you can buy that? All jokes aside, I can't do the bottom thingy."