This took place a long time before I was born, but mine, Ghanima's and Arha's 'canon' provides its own badfic:

There was an adult beefswellingin his loins and he felt his mouth open, holding, clinging to the girdershape of ecstasy. Then a sigh, a groundswelling sweetness, a collapse.

The clincher? That's Ghanima's brother. Age nine.