Charlie Sheen and his newest fiancé, porn star Brett Rossi, are reportedly on the rocks and contemplating calling off their plans to marry.

Charlie Sheen, Brett Rossi Breaking Off Engagement?

Sheen’s partying antics are reportedly the root cause of the friction between the couple, according to Radar Online. Rossi wants him to cut back on his partying, while Sheen wants her to stop hassling him about his wild lifestyle.

“Believing Charlie’s pals to be a bad influence,” Rossi has disallowed her husband-to-be from bringing his buddies back to his Mulholland Estates residence, a source told Radar Online. Unable to bring his constant partying back to the home he shares with Rossi, Sheen has apparently been spending a lot of time out on the town. “Charlie has been going out and leaving Brett at home,” the source added. “She lights up his cell phone demanding to know when he is coming home.”

Since Sheen has been so much time partying away from Rossi, she's also apparently taken to having Sheen don an engagement ring.

“Brett forced Charlie to wear the wedding band, which he is wearing as an engagement ring,” the source told Radar. “Charlie continues to hang around with other women, which infuriates Brett. It’s disrespectful to their relationship, and Brett wants to make it clear that Charlie is off the market.”

While Brett has been busy planning her Nov. 22 nuptials to Sheen, the former Two and a Half Men actor has allegedly been confiding in friends that he’s considering breaking up with her. Sheen’s friends are supposedly “hopeful he will pull the plug on the relationship before the wedding.”

Sheen, who has previously been married to Donna Peele, Denise Richards and Brooke Mueller, proposed to Rossi while on vacation in Hawaii on Feb. 15.