God, lying on your back, legs up, one dude's big cock up your butt, 3 other dudes stroking as they wait their turn to ramfuck you and get their nut up your hole. Whoosh.
For me personally, I prefer eating ass to fucking it. Seriously, If I was there I'd be like "I just wanna eat everyone's asses" and I'd just be like going up to each dude and bending him over and burying my face in his ass or having them sit on my face.