putting 2 girls stacked on top of each others doggie style bent over a bed,couch or any elevated surface to penetrate both.

like you stack lawn chairs 1 on top of another.

also called lawn chair stacking or lawn stacking / Stacking for short.

butt on top of butt stack for sexual reasons.
that orgies was crazy the guys were lawnstacking the girls 3 butts high on that couch.
by Puertoricanflattire January 8, 2022
Get the lawnstacking mug.