Katy Perry is getting very candid in GQ -- talking about everything from her famous curves to her first time.Wearing a striped, black and white bathing suit for the February issue, the 29-year-old looks sexier than ever while opening up about some pretty personal topics.The singer reveals she lost her virginity at the age of 16 in the front seat of a Volvo, while listening to Jeff Buckley's "Grace" album -- telling the mag "Love that record so much. In another confession from back in the day, she says she used to pray for larger breasts."I lay on my back one night and looked down at my feet, and I prayed to God. I said, 'God, will you please let me have boobs so big that I can't see my feet when I'm lying down?'" "God answered my prayers," she says. "I had no clue they...