When Jennifer Aniston and Justin Theroux met on the “Tropic Thunder” set in 2007, she “thought he was very sweet,” but she also remembers “thinking he was very dark.” She said, “At first you think he could be, like, a serial killer.” Post navigation Sleep Wearing Underwear Or Go Commando? Doctors Weigh In. Real Couples Get Candid About Their Sometimes-Sexless Marriages