Amrit Kaur Reveals the “Sex Lives of College Girls” Scene That Reneé Rapp and Alyah Chanelle Scott 'Couldn't Stop Laughing' At (Exclusive)

"I love making people laugh," Kaur, 31, tells PEOPLE, but this season 3 scene was particularly "difficult" to get through

Amrit Kaur's character on The Sex Lives of College Girls might have the show's funniest one-liners, but the actress herself is pretty good at keeping a straight face — until her costars break, that is.

The 31-year-old Canadian actress stars in the beloved Max series alongside Reneé Rapp, Pauline Chalamet and Alyah Chanelle Scott, and she tells PEOPLE that delivering her famous one-liners is usually made difficult only by her dear costars.

"I actually don't break that much. I break more when other people break, so when I'm saying something, and someone's laughing, and then I'm like [laughing]," Kaur, who plays Bela Malholtra, says, before sharing a scene from season 3 that was particularly hard to get through.

Related: Sex Lives of College Girls Showrunner Justin Noble Has No Plans for 'Any Big Time Jumps' Despite Delays in Show's Release (Exclusive)

In the season premiere, Bela, Leighton (Rapp) and Whitney (Scott) are having lunch together when Leighton declines a call from her girlfriend Alicia (Midori Francis). Bela asks if the move is a way of "asserting your alpha-dom-femme-top energy? Making sure she knows you're 'mother'?"

"Bela! Stop using gay slang," Leighton tells her.

Recalling the scene about "gay slang," Kaur says, "We had to do that so many times because Reneé and Alyah couldn't stop laughing.

"I love making people laugh, I'm like, 'Yay, I'm hitting a note,' but that one was a difficult one [to get through]."

Related: Why Is Reneé Rapp Leaving The Sex Lives of College Girls After Season 3? What She's Said About Her Exit

It's easy for Kaur to get "inspired" when she's playing Bela, who showrunner Justin Noble facetiously tells PEOPLE is "the thirstiest person in TV history."

"When I open the script, I immediately get reminded of what's further in Bela than in me," the actress says as she reflects on the "characteristics of Bela that are heightened" compared to her.

"The constantly trying to make people laugh, the transgressions, the boldness, the fearlessness, all [of that] I have, but Bela has that at tenfold."

Kaur also sees pieces of herself in Bela's season 3 storyline, which sees her "trying to make up for past mistakes."

"She had so much freedom and she just left home, and so she thought the world was her oyster," Kaur says of the character in seasons 1 and 2, who had an "I don't care about anybody else" mindset.

"And now she's dealing with the ramifications," she says. "She's going through this process of consciousness and learning who she actually is — what she believes in, who she is in her bones."

Coming back for season 3 was "humbling," Kaur says.

"To be a lead on a series and to be in that unique position is fantastic. It's such an honor," she says. "And there's a rhythm after season 3, there's a rhythm with everything. So it's a great privilege. I'm so thankful."

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The season 3 premiere of The Sex Lives of College Girls is now streaming on Max, and new episodes air weekly on Thursdays.