Christina Aguilera has put on weight since she got married.The singer tied the knot with music executive Jordan Bratman last year and admits she has enjoyed the security of being a wife by snacking on calorific treats.And Christina, 25, claims she has gained so much weight she doesn't think she could fit into the now infamous leather chaps she wore in her 'Dirrty' video anymore.She revealed in an interview with Cosmopolitan magazine: "Putting on those chaps was the bravest thing I've done in my career. I love the fact that I did that and did it when I was young and able to wear them. I don't know if I could put those suckers on now."I like fast food but I've been trying to be a little healthier. I wish I could stop snacking at bedtime, but I seriously can't help it."The singer has revealed she works hard to try and keep her curvaceous figure in shape, but also admits her good genes help her stay trim.Christina said: "I have a new trainer and we've done a lot of muscle building. I go to the gym for an hour and a half a day.
"I hate to say it but a lot of it is genetics and a lot of it is my fast metabolism.
"I think as you get older you get more secure, but it can be hard. I have these days where I'm PMS-ing and bloated."