Paris Hilton might have new bang buddy in Good Charlotte rocker Benji Madden who is the twin brother of Nicole Richie's baby daddy Joel. The two were spotted getting hot and heavy at the St. Louis Ritz over the weekend and sat next to each other on their flight back to Los Angeles yesterday. They split up on arrival, did their best not to been seen together.

"It seemed like they deliberately decided not to walk through the terminal together," one onlooker said. "Benji came through first and Paris a short while later. Clearly they were keen to make sure they didn't end up being photographed together."

Benji hooking up with Paris proves that Sophie Monk was even more out of his league than prevously thought. I'm not a big fan of either Madden but I have to give the guy props for taking one for the team and protecting the Earth's population from the spread of more 'Parisites.' Pictures by Whittle/Seligman More pics after the jump!