Gilson also talks to TooFab about her budding romance with "Floribama Shore" housemate Jeremiah Buoni.
In fact, she told TooFab ahead of Monday's premiere that she's "proud" and has even made the moment a part of her new life motto.
"There's times that I look at myself and I'm like, 'Oh there's that bitch,' but it's just me. There's no telling what's going to happen with me or what I'm going to do next, like peeing on the bed," Gilson told TooFab. "There's a first for everything, baby, and apparently I did it, so if you make me mad, I'll pee on your bed. That's my new motto."
After one too many shots pregaming with her new housemates, Gilson decided she was too drunk to rally for the first night out, so she went to bed instead. Once all of her new roomies were gone, she decided to get up, stumble across the room to 24-year-old Candace Rice's bed, pop a squat, and let it flow.
"It's the first time I did that and you know what? I'm proud of it," the 21-year-old reality TV newcomer added.
But when her housemate, 23-year-old Nilsa Prowant, told her what everyone found out she did, Gilson denied it and claimed that her new friends were framing her.
"Now that I saw my drunken self with the way my underwear was, I certainly believe it," Gilson said. "But I literally thought someone framed me. I don't even remember saying that, but I guess good job to me for saying I wanna go to bed instead of getting wild out more. That's just Kortni for ya. You never know what will happen."
As for Gilson's budding romance with her roommate, 22-year-old Jeremiah Buoni, she told TooFab she thought "he was cute until he opened his mouth."
"I saw his height, number one because I'm tall and I like to wear heels because if you're tall, why don't you rock it," Gilson said. "He was cute until he opened his mouth. He has white boy jokes that are just too white. I don't know if that's a thing, but he is goofy and I'm goofy too. I would never have anything bad to say about him, but he's just a nut."
"Floribama Shore" airs Mondays at 10 p.m. ET/PT on MTV.