Mar 3, 2009, 4:00 GMT
The Saturdays singer Frankie Sandford likes "perving' at her bandmate's "perfectly round" breasts.
Pervy girls- The Saturdays - Comic Relief Red Nose Day 2009 - Press Launch - Empire Cinema, Leicester Square - London, UK © Solarpix / PR Photos
The singer - who is dating McFly bassist Dougie Poynter - admits she is jealous of Vanessa White's body and can't keep her hands off her.
She said: "Vanessa has got perfect boobs and a perfect bottom - I was perving on her yesterday. I hate her, her bum is so hard and pert and her boobs are perfectly round!
"I was just standing there yesterday squeezing her boobs and poking her bottom - I'm so jealous. I'd pay to have boobs like that."
Frankie - who sings in the band alongside Vanessa and Rochelle Wiseman, Mollie King and Una Healy - rates her shoulders and her back as her best features.
She added to Heat magazine: "I don't have very big boobs and since I had my appendix out, I don't like baring my belly. I think, with short hair especially, shoulders and back can look really sexy."
One thing the 'Just Can't Get Enough' singers all agree on is a mutual love of Justin Timberlake.
Rochelle told Britain's Star magazine: "I had a really vivid dream that Justin fancied me and the thing I remember most was being really worried about breaking the news to Mollie."
Your Talkback on this Story