Jennifer Aniston stole the show at Spike TV's Guys Choice Awards in LA last night when she took the stage to present the Funniest M.F. award to pal Jimmy Kimmel. She was joined in front of the microphone by comedian Jeffery Ross, who urged her to roast Jimmy in front of the audience. Jennifer cracked a few jokes at Jimmy's expense and then showed him love as she handed off his antler statue. Jennifer and Jimmy met up again for a photo op backstage, where Jennifer also had a chance to mingle with her ex Bradley Cooper. Jennifer and Bradley exchanged big smiles and a hug, despite Bradley also having new girlfriend Suki Waterhouse by his side for the event. It looks like Jennifer attended without her significant other, while Jimmy brought his fiancée Molly McNearney along for the fun.