The X Factor champions revealed that they will not ever pose naked, saying that they want to teach young girls about "earning sexual respect".
When asked if she would ever appear nude, Perrie Edwards told The Sun: "Not a chance, I don't even have any sexy curves to show off - my chest is like flat pancakes.
"We're only young as well. My mam would give us a slap if she saw me in my bra in a magazine."
Jade Thirlwall added: "I think you have to earn your sexual respect. We're not exactly at the stage where we could get away with doing something like that and have people concentrate on our music.
"Little Mix's first single all naked? Can you imagine?"
Jesy Nelson also revealed that she did not try to lose as much weight as she has since The X Factor finished in December.
"People are always commenting on how I look and it's because I'm a girl. You never see men's bodies being criticised in magazines.
"Once I came off the TV show everyone thought I was on a strict diet but I'd just stopped going to the ITV canteen every day, with fry-ups every morning and chips for lunch, so I lost quite a bit of weight. I'm not going to suddenly become skinny - we're all different shapes and sizes in the band and people relate to us because we look normal.
"It's one of the reasons we won the show. If I started to look like I'd lost two stone it would send out the wrong message."
With Nelson being the only member with a boyfriend, the rest of the girls explained that they prefer to focus on their career than relationships.
Leigh-Anne Pinnock said: "Each of us are the most important thing to us right now. We're very career-orientated. With all of this going on we don't have time for boyfriends.
"The strangest thing recently is having guys at concerts who are interested in us. At the beginning it had been all girl fans, so we're not very good with that kind of attention yet.
"Someone grabbed Jade's arm at our concert the other night and shouted, 'I want you!' She just kind of screamed and ran on to the stage. We all burst out laughing."
The girl group added that they are still close with their X Factor mentor Tulisa Contostavlos since the show ended.
Edwards said: "She's really great, we're always on the phone to her. Things have been difficult recently but she's been such a trooper - she's the most real person ever and I think her strength is why we won the show in the first place.
"We formed such a strong bond with her, she's not a mentor any more, she's a really good friend."
Little Mix recently told Digital Spy that their new single is "quite old-school" and that they will be "bringing back the old harmonies".
> Little Mix to release autobiography