I think he may have been a bottom for the previous occupant of his penthouse.
Don't be stupid. Have you seen Asami? He's like an alpha male, he doesn't bottom for nothing and no-one.
Hey, don't jump to conclusions, you haven't seen Asami in the past. No one has any idea how he was back then. Maybe he built up his knowledge about sex through trial and error, giving a few things and positions a try, going through several partners and learning from more versed individuals, or maybe he was born in a suit with a cigarette and all his sexual experience. Who knows? ^^
I think that he never bottom or if he did, it most likely never to be said since it will ruin Asami's super seme image.
It's a possibility he may have in his teens. You never know. ;P
I wonder...Can anyone imagine Asami being a bottom when he was younger?