Well

Slowly, you wedge your cock into Mika... holy shit, her ass is TIGHT! The problem is, it's so tight that just getting your dick all the way in without making her bleed takes a full thirty seconds, so you pass on to the next girl before you've really gotten started, and you get the same problem: you're hurting them just going in... that is, util you hit Zhen, the dirty asian chick.

Her ass is tight, yes, but has obviously been used and trained, as it squeeses your cock but still ubricates itself, allwoing you to fuck it well. Still the minute ends, and you go to the last girl, Karen.

Her ass has been fucked so much it allwos you easy access... and then grips you HARD! You fuck like a madman, ramming her tight hole mercilessly, and then...

"ARRRGGGGHHH!"

You bust your nut in that ass, squirting enough into her that it runs down her legs while you're still inside her.