Being doing chores all day. D:< Need some assassin's cleaning up after themselves once in awhile.

Maybe Altair is cleaning Masyaf or some shit and Malik comes to tease him about being the 'perfect house wife'.

Or.

Maybe Leonardo has discovered just how fucking dirty his workspace is! Ezio comes to visit and finds himself in the middle of a whirlwind of cleaning products.

Bonus Points if they have sex in the newly cleaned space.
Extra bonus points if someone says; 'damn, I just mopped that'.