Both, its just fair.

You join them in bed, ordering Suzanne to impale herself on you thick rod. As you sit Nancy on your face as your eat Nancy out she moans as she kisses Suzanne. Suzanne rides you like a possessed whore needing your seed. Both of them break their kisses to say nasty and filthy thoughts.
Nancy says "eat my pussy baby taste your mommies honey pot". Suzanne says "yes daddy, fuck your slut, fuck her hard." You are losing control and pounding each of them hard; as you hear them both moan "Oh.... fuck", "cumming", they spill on you collapsing on top of you.

You are all too tired and all of you fall a sleep in a pile.