A source claims that Demi, 48, is so insecure about her age difference with hubby Ashton, 33, that she carried on an affair with younger actor Ben Hollingsworth, 27! Read on for all the details of their scandalous relationship!

While Ashton Kutcher reportedly had two flings with Brittney Jones and Sara Leal, Demi Moore may have just carried on her own affair with one of Ashton’s younger friends. A source reveals that Demi hooked up with sexy actor Ben Hollingsworth, according to In Touch magazine.

Demi, 48, met Ben, 27, when he moved from Canada to LA. He was a struggling actor and Demi made it her responsibility to help bolster his career. “He was star starstruck from the start,” the insider tells In Touch. Demi and Ben formed a “fast friendship” that quickly developed into something more.

Demi took Ben around Hollywood introducing him to everyone and showing him the hippest spots, shares the source. She even introduced him to Ashton, and helped Ben with his role on The Beautiful Life on the CW (Ashton, 33, was the executive producer of the show). ”She helped him a lot,” says the source.

Ben was even invited to party at Demi’s house with his friends. “They smoked a lot of weed,” reveals the source. “Demi [who didn't smoke] was cool about it all. She and Ashton acted like teenagers.”

Then, one night Demi gave Ben a ride after a night out partying. “They wound up having sex in the back of the car,” says the insider. “It just kept going from there.”

“[Ben] said she was really hot and she took care of him,” adds the insider.

But as Ben grew closer to Ashton, he eventually called it quits with Demi. “He was getting to be better friends with Ashton and he felt bad about it,” shares the source. That’s when Demi went back to Ashton.

- Lauren Nicole

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2. Ashton Still Wearing His Wedding Ring!
3. Demi Visits Ashton On Set!