With just about every girl on the planet dying to lock lips with Justin Bieber, it makes a lot of us wonder: What -- and who -- makes the Biebs' best kiss ever? He dished all the details!

Somewhat unsurprisingly, Bieber revealed that Selena Gomez gave him the best kiss of his life. But surprisingly, he actually gave details on that special smooch. Why's that part surprising? His relationship with Gomez is something he rarely discusses publicly out of respect not only for her, but also for the zillions of Beliebers who adore him and want to still think they have a shot. (Hey, you never know what could happen tomorrow!)

''I never like to throw it in my fans' faces. I love my fans and I'd never want to do that to them," Bieber admitted. "It's my private life and I like to keep separate. I don't have many things that I get to keep to myself but that's one thing," he said. "I'm very happy. And I know my fans just want to be happy for me."

That didn't stop him from getting all cutesy about his and the 'Love You Like a Love Song' singer's first pucker, though. ''My first kiss with Selena was the best of my life," Biebs gushed. "It was in the car. It was scary and spontaneous and it was just awesome.'' Awww!

Bieber told Fabulous magazine that he is, indeed, smitten with Sel -- as if we couldn't tell from all the adorable photos of them together. ''What does love feel like? It feels good. If you're really in love then you should get butterflies. Butterflies and happiness, that's how I feel anyway." Too. Frickin'. Adorable. Selena, you're a lucky girl!

Watch the Justin Bieber 'Boyfriend' Video

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