Are Jen and Vince an item?

So my friend Megan who lives in Chi Town see a few entries down (with David Schwimmer) was out last night in Chicago and wrote this..........,

"So Katie and I went to see Vince Vaughn’s comedy show last night. It was the last night of the show since he lives here in Chicago full time now…did you guys know that? Anyway, the security was being so anal about searching for cameras that I knew something was going on. Anyway we get there and get seated and they turn the lights off and you see a bunch of people getting ushered upstairs and sure enough when the lights turn back on there is Jennifer Aniston! She is so beautiful and sat in plain view of everyone. She is really tiny and had a black tank top on. She looks exactly like she does on TV. Anyway she was with another woman and Chris McMillan, her hairdresser. The show itself was the funniest thing I have ever seen. It was great. They had a ton of comedians and they even brought out a guy from Dodgeball and Wedding Crashers. It was great! Too bad no pics! Between her and David, the cast of Friends needs to stop following me…HAAAA!"