Justin Timberlake & Jessica Biel Back On?

By: Shannon Gossage

Timberlake and Biel reportedly were spotted partying it up at a friend of the SexyBack singer’s birthday party on Friday. The couple reportedly arrived at the party holding hands and looking very comfortable with one another. A source said, "If Jessica was talking to a group of girls, Justin would come over, kiss her neck, and start making out with her." The couple reportedly left together after the party.

Timberlake, 25, and Biel, 24, were first spotted together flirting at a Golden Globes after-party on January 15. On January 24, Biel reportedly flew into Utah to stay with Timberlake at the Sundance Film Festival. It was reported that the two spent a romantic weekend skiing and hanging out together. Just a few weeks later it was rumored that the two had called it quits on the romance before it even really began. A source said that Timberlake wasn’t looking for a girlfriend or anything serious and their little dalliance was just a fling.

Timberlake split from girlfriend Cameron Diaz in January after three-years of dating. Sources say that Timberlake was the one who pulled the plug on the relationship. There were other rumors that he was romancing Scarlett Johansson after she appeared in his video "What Goes Around." Johansson has denied that anything romantic happened between the two of them and said that the two are just friends. Ironically, Johansson was recently reported to be romantically involved with actor Ryan Reynolds who dated Biel a few times in late February and early March. Who can keep it all straight?