The girlfriend of Kansas City Chiefs quarterback Patrick Mahomes and his little brother were heavily taunted during Sunday's game the New England Patriots at Gillette Stadium, TMZ reports.

Brittany Matthews tweeted that Pats fans treated her and Mahomes' little brother so poorly, that security had to intervene and move them to new seats.

"As soon as we sit down, drunk dude ‘hey everyone this is patrick mahomes girl and brother, let’s give them shit,’" she tweeted. "This shall be fun.”

"This place is horrible, people already yelling every time I stand up, am I not [allowed] to stand up for football game?” Matthews added.

She followed up with a post on Instagram. "I’m here & these fans will NEVER keep me away," she wrote, with the hashtag #chiefskingdom.

Matthews also teased Patriots fans after the loss, tweeting that all they care about is that "we still have 6 Super Bowls."