Kourtney Kardashian is rumored to be leaning toward seeking full custody of her three young children from longtime boyfriend and father Scott Disick.

HollywoodLife reports the new issue of Life & Style magazine set to soon hit newsstands claims the 36-year-old Kardashian has kicked Disick out of their family home and "her team of lawyers has been notified that she's gearing up to fight for full custody."

Kardashian reportedly reached her breaking point after news recently broke that Disick had allegedly spent four days shacked up with a 21-year-old woman in a New York City hotel.

"She called Scott after the story about his latest infidelity came out and told him he'll never see his kids again," said a source. "You can't blame her that would break any relationship up."

In the wake of it all, several media outlets have reported the two had one of their biggest fights ever and Kardashian walked away feeling as if she has little choice but to protect her young children.

Kardashian was recently spotted out and about at an L.A. restaurant with a girlfriend, but based on the conversation overheard by a spy during the hour or so she stayed her mind was still on clearly on Disick.

"Kourtney was deep in conversation with her female pal and didn't seem too happy," said a source. "She was overheard mentioning Scott's name a few times and appeared quite distressed as she talked to her friend about him."

Over the years, 32-year-old Disick is also rumored to have cheated on Kardashian with her sisters, Kendall, Kylie and Khloe. He reportedly become so enamored with Kendall that he once proposed to her and vowed to leave Kourtney and build a life with her.

The couple's three young children are Mason, 5, Penelope, 2, and 6-month-old Reign.