This is what I just got back from her :3
"it's a bit complicated XD Basically: I started a cycling town, got Lucky, but accidently tt'd lucky into boxes DX
I only have one 3ds so I couldn't transfer him to my main town yet, so my friend holds onto lucky. But then I restart my cycling town and lucky moves in again o.o so now we're just waiting to see what happens first- her lucky moves out (no tt) or I buy a 3ds xl and can transfer between my two towns!
and then the other lucky will be given away- but that probably won't happen for a while :<"