I Have Sims 3 Generations stuff, without having Sims 3 Generations!?

I logged onto my Sims 3 Late Night game last night to play with a new family (might I add the opening loading screen did infact say "Late Night") And when I went into create a family, I noticed some weird stuff. I could put body hair on my sim! And I was like "Can't you only do this in genererations?" (I have been wanting the game, so I did lots of reading on it) So I continued playing only to find out out I had the memory scrapbooking as well. Then while I made my sims talk to each other I noticed I also had the dating feature. At that point I was like "Wtf?" I checked the buy mode, and there was nothing new, those 3 things are the only things I have. Does, anyone know why?