'Real Housewife' Arrested for Assault!

The claws are out on "The Real Housewives of New York City" -- and the newest housewife, Kelly Killoren Bensimon, allegedly punched her beau during a heated argument and was arrested for assault!

Bensimon, 40, denies the claim of her 30-year-old boyfriend Nicholas Stefanov, who told police that she clocked him -- leaving him with a black eye and a cut face. Stefanov reportedly claimed his injuries were worse than Rihanna's.

Donald Trump, a friend of the socialite, reveals to "Extra," "I know her, and she's a lovely woman. I don't get it!" adding, "If she's a big hitter type I don't see it at all. I would think he drove her crazy -- something happened."

While filming a recent fashion segment with "Extra," Bensimon chatted about the clothing featured and her beau. "The great thing about this look is I can go to dinner with my boyfriend," she said, modeling the outfit. The model also confessed that after only two episodes of the Bravo series, she's already getting a bad rap. "They're saying all sorts of nasty horrible things," she admitted to "Extra."

Kelly turned herself in Thursday, two days after the altercation, and was released on her own recognizance. "The allegations are by a jilted lover saying she struck him during the course of an argument," her lawyer Stephen Turano tells the NY Daily News. "We deny the charges, and we are hopeful this will be resolved."