One of the big surprises at last night's American Music Awards occurred when actress, model and talk show host Jenny McCarthy kissed a startled Justin Bieber on the neck and then grabbed his butt after presenting him with his trophy for Favorite Pop/Rock Album.

"I couldn't help it," McCarthy explained in the pressroom afterward, "he was just so delicious." She also joked, "I'm single, but I think that's cougar rape if you ask me." She went on to say she was upset when her fellow presenter, country singer Luke Bryan, went to wipe her lipstick off the 18-year-old Bieber. "I did that for a reason -- so he'd remember me."