American Guinea Pig: Bloodshock (2015)

(1:15) During a bizarre and gross love scene, while in a padded room we see right breasts on Lillian McKinny as she is kissing, licking and biting the wounds of another patient. She is in men's underwear as well.(1:22) After all the bloody lovemaking we see a shot of Lillian McKinny's buns lying on the floor next to the guy.