(Cover) - EN Showbiz - Justin Timberlake says his mom "wasn't cool" when she caught him having sex.
The 30-year-old actor-and-singer has recalled an incident that led to him being embarrassingly caught in an awkward clinch with a girl.
The hunk, who is famed for dating some of the most beautiful actresses in Hollywood including Jessica Biel and Cameron Diaz, says his mom was upset to find him romping at such a young age.
"I was caught [having sex] one time. My mom wasn't cool about it," he recalled in the August edition of Elle magazine. "I was too young to be in bed with a girl, so she was upset."
Justin is starring in upcoming romantic comedy Friends With Benefits opposite Hollywood beauty Mila Kunis. The film focuses on two pals who decide to take their friendship to the next level by embarking on a no-strings-attached sex pact.
Justin insists a strictly physical relationship rarely works out.
"It is such a good idea - until it's a bad idea," he mused.
Mila agreed with the sentiment. The stunning star says women get emotionally attached and never view a relationship as purely sexual.
"Ultimately, it ends when someone wants to go and get serious with somebody. More times than not, a person catches feelings and somebody gets hurt," she explained. "When a female orgasms, a hormone gets released. I've never met a girl who can have sex without an ounce of feeling."
Both Justin and Mila bare a lot of flesh during the film because of its romantic nature. Mila, who is widely regarded as one of the most gorgeous actresses in Hollywood, says she was uncomfortable with showing so much skin.
"You've got a fine ass," she told Justin. "I was self-conscious about a lot of things. Show me one girl who isn't."
Justin revealed he was also nervous about the semi-naked scenes. The American star joked that he kept his mom in mind when it came to post production.
"I'll be honest and say, like, I'm still trying to get into the editing room and cut down on my ass time. I'm like, 'Oh my God, my mom's gonna see that!'" he laughed. (C) Cover Media