Fun in the Pigpen - sketch (Pixiv Fanbox)

The copy paste didn't put this into the Thusday upload post so I'm putting it here.

This is an animated commission. It is based on an erotic story. I'm going to try to make this one look like it is a clip from an animated movie. It is going to look beautiful if I can get the effects to work. Eager to see how it turns out.