Stefan- Lips because he thinks it's passionate when they are nice long ones.

Damon- Stomach because he likes how it sends shivers up your spine.

Klaus- Neck because he likes the sounds you make when he nips you.

Elijah- Ear because he can whisper sweet nothings in your ear.

Kol- Your other lips because he loves the things that come out of your mouth when he does it.

Tyler- Cheek because when your around other people it shows your his and he like how you blush whenever he does it.

Enzo- Forehead because he thinks it's sweet.