Prompt

The porndemon smiles wickedly while she is up to devour the cum of a giant dick in her mouth, while another dick fucks her from behind. She has purple halflong hair, horns, a tail and batlike wings, big reddish eyes, big tits and hips. She wears a high knit purple latex corset that just stretches till her tits, barely covering her nipples. She also wears thigh-high purple stockings and garters and a tiny black thong. She is in a sinister medieval castle. Moonlight falls through the windows.