earlobe fetish
having an earlobe fetish means you get turned on by big floppy earlobes and you just can't stop touching them.
I walked into the room and saw his earlobes. I immediately sat next to him.
She had the biggest earlobes I've ever seen. I had to rub them.
He asked me to the prom. I said yes, but only if he let me nibble his earlobes.