Easy.
Watch her handle 2 cocks.
I want the eye contact of her mouth full of my cock whilst getting fucked from behind
Also. On her knees, hand on one cock and mouth round the other, swapping between the two
Lastly. Have her bent over in doggy, and the two guys/ me + another guy just keep rotating pussy-mouth-pussy-mouth between us where she doesn’t move, we just keep swapping.