I Want My Money! Scott Demands Access To Kardashian Cash After Kourtney Cut Him Off -- Inside Their Tense Showdown

Scott Disick is fighting back! After successfully winning time with his kids, RadarOnline.com has learned he is now demanding his baby mama, Kourtney Kardashian give him access to their shared fortune.

Kardashian had cut him off financially after breaking up with him several weeks ago, according to insiders. And when the two finally came face to face at the Beverly Hills Hotel on July 23, "he was overheard telling her that there was a need for him to have access to money," an eyewitness told RadarOnline.com.

"Scott seemed to be very upset when talking about money," the source said. "Kourtney seemed to know she held all of the power, and didn't look as stressed out as Scott was."

"Kourtney smiled at the servers, and was very pleasant, whereas Scott looked absolutely miserable," the source continued. "He also seemed to be sweating a lot more that would be normal for someone. There was perspiration around his forehead. A staffer from the hotel seemed concerned enough to ask if Scott needed a wet cloth, and he seemed out of it."

The insider didn't hear how much cash Disick demanded, but added, "It obviously was substantial. It seems he has grown accustomed to the extravagant Kardashian lifestyle."

As RadarOnline.com reported, Kardashian called the meeting to discuss visitation rights for their kids, Mason, 5, Penelope, 3, and Reign, 7 months.

"She wanted him to know that she was going to go after full custody of their children and that she would allow him visitation rights as long as he is sober during the entire time he spends with the kids," a source previously said. "For the time being, he is also required to be accompanied by a third party."