During MTV's "Teen Mom OG" off season, star Farrah Abraham has appeared on the U.K. version of "Celebrity Big Brother" where she is -- as usual -- getting into fights with her co-stars.

Abraham was involved in a heated argument with Austin Armacost and "British Apprentice" star James Hill on Monday night's "Celebrity Big Brother" episode.

It started in the "CBB" lounge where former porn stars Abraham and Jenna Jameson began questioning Hill and Armacost's close friendship, implying that Armacost had a hidden motive for getting closer to Hill.

Armacost has a husband. He is married.

"I heard this whole thing last night, he was like naked in your bed asking you to massage his hamstring," Jameson said to Hill. She added that Armacost "pulled down his pants" and she couldn't understand why Hill wouldn't tell him to back off.

Hill said that the Indiana native never tried to come on to him. He joked that the minute he tries to touch him, "I'll be in bed with Bobby Davro."

That's when things got ugly. Abraham said to Hill, "Slip 'n' slide with that sexuality... That's you."

"It's going to be a slip and slide and you'll just be in it," he said, offended. "You have no boundaries."

Abraham accused him of being insecure, to which Hill quickly fired back that she's the one who is insecure.

Hill went to the garden to discuss what happened with Armacost and another "Celebrity Big Brother" housemate, Janice Dickinson.

Dickinson gathered everyone inside the lounge to make peace. She announced that there should be no more remarks about people's sexual orientation.

"I just don't want it in front of anyone or around me," Abraham said.

Armacost demanded to know what she meant by "it."

Abraham started to walk out of the room and flipped him the bird.

"You got famous because you were pregnant underage and you stayed famous because you had a sex tape!" he shouted at her.

Abraham walked up to him and the two seemed ready to fist fight until co-star Fatman Scoop stepped between them.

"You are a f*cking disgrace to humanity," Abraham told Armacost. "Do you want to go and have a kid so that you can be cool? But you can't have a kid because you don't have a f*cking vagina!"

Fatman Scoop and other "Celebrity Big Brother" contestants diffused the argument.

Later, Armacost vented about Abraham in the "CBB" diary room.

"I knew this was coming. This is who she is. She was 16 years old and her mind stopped growing," he said to the camera. "Everybody hates you in America."

Later on Monday's episode, viewers were surprised when Abraham and Armacost apologized to each other.

Abraham apologized for making Armacost feel like she attacked his sexuality. He explained that she had disrespected his marriage by what she said.