Ashton: Your Eyes
He loves how he can get lost in them, and he always tells you as much which ends in him staring into them. That leads to more. ;)
Luke: Your Hair
He loves to run his fingers through it and he's always playing with it. Any time you're cuddling he always ends up with his hands twirling in your hair.
Calum: Your Feet
He loves them because their the perfect size to him and he loves to twist them up with his own. And the being the weird guy he is he loves to rub them.
Michael: Your Fingers
He loves your fingers because their long and slender. He loves to play with them while holding your hand, rubbing them between his own and occasionally kissing them.
I'm sorry if this seems weird! I'm trying to pay attention to writing but it's hard because I'm in the same room as one of my favorite shows. XD Love you allllllll! :)