Kylie Jenner and boyfriend Tyga stepped out for a dinner date in New York City on Sunday night, and we're not sure what on earth he's wearing, but Kylie looked pretty hot! It's still hard to believe she turned 18 just one month ago...

On Friday night the duo attended the Alexander Wang fashion show at Pier 94 in New York City, and at an event afterwards, Kylie posted a raunchy Snapchat video of herself biting Tyga's lip. This was their first public appearance as a couple, but this isn't the first time the two have showed some PDA.

Last month Kyles appeared in Tyga's video "Stimulated," and she's all over her man, but of course, one could argue that she was merely playing a character. Then again, when you listen to the lyrics, it's pretty clear that she's not. "They say she young, I shoulda waited / She a big girl, dog, when she stimulated," Tyga raps. Ah, kids these days. Except Tyga's 25, but no matter...