English, French, used to be fluent in Japanese, picking up lots of Chinese and going to attempt to teach myself Vietnamese so I can communicate with my girl's parents better.
I bet if I had Japanese exchange students again or went to Japan I could pick it up in a heart beat. My accent is perfect, and I can sing fuckloads of Japanese songs too.. grew up with Japanese exchange students. Some of the girls were pretty nasty but when they were hot, they were pretty close to flawless.