Justin Bieber petrified by first kiss

The 'Baby' hitmaker stepped out with the 20-year-old actress in February last year confirming months of speculation that they are dating, reported Daily Star.

"It was scary and spontaneous and it was just awesome... (It was) the best (kiss) of my life," he said.

The 18-year-old singer always remains reluctant to discuss his relationship but said he was left "smitten" by the kiss.