Kylie Jenner engaged in some playful PDA with boyfriend Tyga on Snapchat!

The 18-year-old, who can't keep her hands off the 26-year-old lately, posted a video of her kissing the rapper while he was driving her car.

RELATED: Kylie Jenner Wears Racy Designer Outfit For Date Night With Boyfriend Tyga

We're not surprised the duo look so in love, given they're expecting their first child together!

As Life & Style exclusively reported, "All [Kylie] can talk about is baby names, whether she’ll have a boy or a girl, how she’s going to decorate the nursery and the child’s wardrobe.”

Scroll down to see more of Kylie and Tyga's raciest moments on Snapchat!