earlobe fetish
you have an earlobe fetish if you're obsessed with earlobes and you'll do anything to get your hands on them.
I walked into the room and saw her earlobes. I immediately went over and touched them.
He bit my earlobe so hard it felt like it was going to fall off.
She said she'd go out with me if I let her nibble my earlobe. I said yes.