Skrotten i Protten

A sexual act, includes at least two people.

One person fills their belly button with a dip of any choice, another person then proceeds to eat the dip off said persons stomach.

My parents were out of town, so I invited my friends over for some Skrotten i Protten.

Person 1: "Yo dude, do you have any salsa"?
Person 2: "Nah Bro, *hu hum* my girlfriend and I did some crazy Skrotten i Protten last night"
Person 1: "Dang dude, do you have creme fraiché by any chance"? *hu hum*