Marshmallow style involves oral sex and a hot marshmallow. To preform "marshmallow style" you need to roast a marshmallow over an open fire, it can be a little burnt (if you're into that kinda thing) and then immediately put it in your mouth and go down on someone.
While camping with Chrissy, she marshmallow styled the hell out of me. It was the tits!
by Whiskeydick December 01, 2012