(Cover) - EN Showbiz - Cameron Diaz wanted her new movie to show kids they can't get pregnant if they "keep their jeans on".

The actress is Elizabeth Halsey in Bad Teacher, while her former beau Justin Timberlake plays her character's love interest Scott Delacorte.

The pair have a lot of steamy scenes but had no problem shooting them. Cameron explained she wanted to show children the importance of thinking before being intimate with someone.

"It was the least sexy scene you've ever seen," Cameron told Extra.

"We took [the scene] on as a very serious responsibility to create the best PSA for safe sex. To show children that if you keep your jeans on, you can't get pregnant, you can't. Just keep the jeans on. It's a jean jam."

The sex scene was fully clothed and filled with clumsy hilarity.

In real life, however, Cameron is very happy with having a well-coordinated and well-oiled sex life.

"I am always in the mood," she previously laughed. "Sex is the sexiest word in the English language. Just the word is sexy to me." (C) Cover Media