John keened at the sensation of that finger sliding in. Ohfuckyes. The porcelain didn't allow for much in the way of something to hold onto. He swore and pushed his hips back, raising his tail, so Sherlock could have all the access he needed.

"Yes! Please. Your fingers, your cock. Anything you want. You can put anything you want inside me." He gasped, "I'll be good and fuck whatever you want me to. Beasts, other demons, humans. I'll get on my knees for them..."