As Kylie Jenner's Snapchat has shown, the 18-year-old and her beau Tyga are not afraid of a little PDA, and the pair were all over each other again on Oct. 5 — but this time, the canoodling took place onstage in front of thousands of fans!

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While performing at California State University Northridge, the 25-year-old rapper began singing his song "Stimulated," which is based off his relationship with the reality star, when she unexpectedly joined him onstage.

kylie jenner

Tyga immediately hugged his girlfriend before rubbing his hands all over her and sneaking a few kisses. This comes just days after a source claimed the musician was venting about the brunette beauty to his ex and baby mama, Blac Chyna.

The somewhat uncomfortable moment between the duo was caught on camera by an audience member, which you can watch below! Maybe keep the groping to yourselves next time, guys!

https://www.youtube.com/watch?v=pnOL3jRFpm8

Scroll down to see the pair's most gag-inducing moments!