What do you prefer Onee-san or imoutos

I like both but if I could have one... imoutos. :D

I just realized you missed one: a twin sister. In that case, it would be twin.

Crap i thought i forgot somthing

See how helpful I can be? I just totally thought of that after thinking about Aki Sora and Yosuga no Sora (both have a twin named Sora lol).

I can't choose. I literally flip flop on this preference every other day.

Actually I'll put it this way. As of today, I prefer an Onee-san that loves to tease her little brother. By tomorrow, I'll prefer an imouto (tsundere, spoiled, yandere, innocent: doesn't matter).

Imoutos. Whenever I think of an incest scenario or incest (in regard to hentai) in general, it's always a younger sister. Onee-san has never crossed my mind honestly.

I guess it's the femdom Onee-san for me ;-)

I caused tie breaker but its really hard to choice
it depends on her personality and body type