Vaaginaal rape.
Look, you're already that guy. As you stand over your prone victim that you either drugged or beat down with a sock full of quarters, you're totally committed to becoming a heinous zit on the anal flap of society. You are either too high/drunk to care or Uncle Zeke turned you into an elephant puppet when you were six years old. You have issues. You are set on your path. So as you stand over your semi-conscious victim, tell me, knowing that you're about to become a pariah for life, why on earth wouldn't go all-in and aim for the pooper?