Well, German obviously, since it's my first language.
English I seem to have some sort of talent for, I think it's safe to say I could move to an English speaking country and only get noticed because of my accent (and some grammar issues, perhaps).
French and Spanish I used to speak pretty fluently until I lost interest (mainly because French is, pardon my French (hehe), gay, and my Spanish teacher was a nutjob) but I'm gonna have to improve on those two very soon. In fact, a phrase in my curriculum states I have to be able to speak those two "as perfectly as my native language" to get the job I want.
And finally I taught myself some Swedish in my free time, partly because I love the sound of it (kind of like German, only more awesome), but mainly because Swedes are a crazy ass people and every one I've met I instantly sympathized with.