In the echoing silence that followed, the hamster's blood dripped slowly onto the wet tile floor.

"Mounting me?" Kakashi managed finally, banishing the mental image of Ryouma-and-Kuromaru spawn. He wasn't entirely successful. "Ryouma's not--"

He derailed his brain from traditional pathways of thought. Ryouma's scent was still on him, along with the lingering fission of very good sex (he'd been home just over a day, but most of that had been spent very firmly in bed; and maybe he'd been letting Ryouma's scent hang around on purpose, but that was no one's business but his own) and that was all a dog needed. Specific mechanics didn't matter to a mind that thought in black and white.

Though why Kuromaru thought Ryouma was doing the mounting--

Or why he was worried that Ryouma would want all the girls--

Or, even weirder, disappointed that Ryouma wouldn't be fathering offspring...

Kakashi's eyebrows arched right up to his hairline.

"Kuromaru, who's your alpha?"