"I felt like s---," Sandoval said in a video. "And on top of it, the airline lost my luggage." Yes, Tom Sandoval knows you're laughing at his horrifyingly large pit stains on The Traitors. But now the Vanderpump Rules alum is laughing at it too as he reveals the unaired reasons why he was sweating his "ass off" in the castle — and it had nothing to do with the game at all.

On Thursday, the Vanderpump Rules star took to his Instagram Stories to open up about what led to his very sweaty situation on The Traitors, sharing the reason behind his large pit stains after the moment went viral on social media.

Along with being talked about for how he reacted after Alan Cumming deviously picked the traitors, during episode 2, Tom Sandoval walked into breakfast with a neon green cardigan over a grey shirt that he ended up taking off. It revealed some deep pit stains that started a hubbub on social media. Here’s how Sandoval explained it:

Tom Sandoval is addressing his pit stains on Peacock’s The Traitors after a video of him on the competition series went viral. The Vanderpump Rules star took to social media to explain why he was sweating profusely.

Peacock's The Traitors Season 3 Tom Sandoval becomes reality TV gold as his ego, deception, and lack of accountability make him my breakout star.

Tom Sandoval has addressed those sweaty armpits on The Traitors. Sandoval, 42, shared his thoughts via Instagram Stories after a video circulated online that showed him as a Traitors contestant — sporting a T-shirt with major pit stains.