Mollie King says her life has changed now that her bandmates have kids.

The 'What About Us' singer has no kids of her own but insists she enjoys ''the best of both worlds'' since Una Healy had daughter Aoife Belle with Ben Foden in March 2012 , Rochelle Humes and husband Marvin had Alaia-Mai in May 2013, and Frankie Sandford welcomed Parker with fiance Wayne Bridge in October last year.

Mollie told the March issue of Cosmopolitan magazine: ''I've been up to the hospital each time after Una, Rochelle and Frankie gave birth. The babies were literally a few hours old when I saw each of them. Aoife is a year-and-a-half now and it's amazing seeing her grow up.

''It totally changes your life and I have the best of both worlds - I can play auntie but not have to do all the nappy changing!

The 26-year-old beauty is in a serious relationship with her American producer boyfriend Jordan Omley but says she is under no pressure to have kids.

She mused: ''One day I would like to have loads of kids, but I'm not quite ready for it yet.''

Mollie - who is also joined in The Saturdays by Vanessa White - felt ''really protective'' of her bandmates when they were pregnant and wanted to shield them from criticism of their changing shapes.

She said: ''I feel really protective of all the girls especially while they were pregnant. The press can be really hard on women and their pregnancy bodies. She's carrying a human inside of her, what do you expect? A woman's figure is going to change. I'm so proud of what great mums they are.''