@c3p-0h More like my fourth language. We learn German, French and English in school. While my French is quite bad, and I can only string together random words to say stupid stuff like 'my cat is in a pool of shit', my German is rather okay. My English is easily my best language. I take international classes so I speak English like every day, I chat in English to all my friends (except my real life friends) and I spoke English since I was 6 (I liked playing Runescape). I even think in English at most times.
Never the less, the whole nephew-niece-cousin stuff still eludes me, since we don't have 'cousins' and we refer to 'cousins' as a nephew or niece depending on their sex.
Oh, yes, and that's Dutch.