On the contrary I generally agree with you when dealing with the regular realms of D&D.
The question then is, can humans breed with Dwarves, and if so then there's at least a 50% chance that Dwarves are compatible with Orcs.
I believe it even covers forced interactions.
I am trying to imagine a game which actually needs rape rules.
Actually, wait. I'm trying not to.
That was only half my point. Only humans and powerful magic monsters historically have been able to crossbreed with other creatures.
Sorry, I was not saying that the game suddenly stops being D&D, I was saying that the sexual role-playing part is not a part of the D&D.
I am trying to imagine a game which actually needs rape rules.
Actually, wait. I'm trying not to.
I am just having trouble imagining who would need to roll a die and consult a rape chart.
Or want to, really.
I'd do it, if I wanted a random element to the story. It's not unlike rolling on a chart for ideas for character background.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.