1. get naked
2. take the loosest part of their own Labias
3. stack the two labias side by side
4. pinch the two Labias together
5. make out in front of camera (optional)
Alexa: Me too, wanna make a Labia Sandwich?
So I'm basically titty fucking her twat and the other two chicks start pushing her lips hard against me. It was fucking amazing. And just when you think it couldn't get any better? One of the chicks starts sucking the brunette's clit lips, and the other one starts mouthing the head of my cock. FFsake! So while I'm stroking it back and forth, I'm mouth fucking her hard, and the brunette is getting awesome head and cock action.
When she came I lost my shit completely. It was a rockin' Labia Sandwich!