"It's because you took care of me when I was small. Emotional bonds formed with even a surrogate mother are often long lasting and hard to break, no matter how ill advised," Itachi explained with a shrug. "So even though you're in bad taste and you're hideous, my brain has been programmed to feel affection for you, so there's really nothing to be done about it."

Itachi gave Shisui a serious look. "And because of the affection that I really have no control over, I would cry if you drowned. Inconsolable sobbing. Very disgusting and uncomfortable for all involved." Itachi tried not to smile.