Typically, the one doing the penetrating is charged. Not always, there are cases of heterosexual rape where the woman is the aggressor. These posters are from a not-too-distant past where only men raped only women. If it was 2 guys, it was just weird gay stuff. Girl was the aggressor...guy should feel lucky. 2 girls; "nice."

Index out of bounds exception

Well, clearly with two men they raped each other. Two women, no crime.

The universe collapses in on itself, turning into a supermassive ultrablack hole

Then the manliest one is charged. If no man is found there is no crime

It's hotter

I don't think these were legally binding posters. I'm not sure you'd get super far if even one person was drunk in court, unless they were literally blackout drunk and you had video evidence of it (or you were black of course).