"Ever had sex with a Skaven? They are an impressively aggressive species, harping and scratching any warm bodies they can get their claws on. Though they make formidable groups, a single Skaven is quite weak, and they lose much of their gall when faced one-on-one. Any illusions of real combat drop when a Skaven smells the lust of man. Intercourse becomes a constant tug of war, vying for dominance as power sways and shifts. Do not let up, as they are tricky beasts. They breed like rabbits with a constant fire to cut your throat. I recommend you bring an iron will and a steel vigor, should you decide to pursue any of these vile creatures. And never, ever go near one if there is a source of warp stone nearby. Trust me."
Something a bit different, a render of Jake and a female Skaven from Warhammer Fantasy, locked in the prose of vigorous intercourse. I don't know much about Warhammer, but I do like the fantasy aspect of it.