It's seeming more and more likely that Megan Fox and Amanda Seyfried will engage in a bit of girl-on-girl action as part of Jennifer's Body.

According to sources, actresses roll around in bed, topless and kissing.

"The two girls make out hardcore, rolling around in a bed," said an insider. "It was a really hot scene."

In Jennifer’s Body, Fox portrays a possessed cheerleader who goes on a killing spree against her male classmates. The movie is written by Juno scribe Diablo Cody and is due for a 2009 release.

"I eat and seduce everyone. There's a lot of kissing everyone - boys and girls. All kinds of craziness," Fox said of her (amazing!!!) role.