Kylie Jenner had been skirting the line of what felt right/legal for a while, but since she turned 18 last month it already seems like she's turning up the sexy. Case in point, this new Snapchat video where it looks like she's either kissing Tyga's grill or biting his lip (it's hard to tell).

 

According to People, the couple was in the front row at the Alexander Wang show for New York Fashion Week on Saturday night, where Kylie "went sexy in an ensemble that involved a revealing black leotard and skinny black pants."

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