Reminds me of the time when I was playing Melee with my friend did Bowser's Hip Drop and I did Roy's Up Smash Attack and my friend was like "Nigga, he ain't gay!"
Given the fact that Roy fucks six girls in his game, there's a good chance that Roy will be doing the raping.
However, Peach is Top Tier while Roy is lower-middle Tier, Peach would more likely be the dominate one.
Oh and they're going to fight, this music should play out: