earlobe fetish
if you're into earlobes, you're obsessed with them and you'll do anything to get close to them.
I asked her to my house. She came, and the first thing I did was nibble her earlobe.
He kept touching my earlobe during class. I got distracted and failed the test.
She said she'd go out with me if I let her nibble my earlobes. I said yes.