Purse Itch

When a man with a mustache/stubble around the mouth area performs oral sex on a woman and gives her stubble burn on the inside of her labia.

"I saw you go home with that guy last night. He was super cute, and his mustache totally rocked!"
"Yeah, and he ate me out for hours too, it was amazing."
"Oh no, I hope he didn't give you purse itch!"