A sex move, similar to a spit roast. In a threesome involving two men and one
woman (or three men, I don't judge), one man fucks the
woman doggystyle while she gives the other man a blowjob. Upon nutting, the man behind her cums in the
vagina (fluffing her up), while the other man nuts on her face.
The name comes from the delicious sandwich made with peanut butter and Marshmallow cream.