Is this big ass a slut or a masochist? This is a user-friendly Big Butt series where you can enjoy both the sadistic and masochistic aspects of this masked woman with a huge butt! This big-butted woman with an abnormal sexual appetite will not take off her mask until she is satisfied, and it's a test of endurance. This time, we have Black Mask, the lady with the smallest butt in the series at 90cm, who claims to have a 100% sadistic and 100% masochistic sexual preference, with 10,000 powers. She licks the man's face while teasing his nipples until he nearly faints, then squishes him with her obscenely huge ass, squeezing his face until he ejaculates massively, then urinates as a reward, resulting in a gushing squirt of pre-cum. Then, she gets some affectionate sex, shaking her big ass in cowgirl position, and then some intense footage of her big ass in the sitting position. She's made to orgasm with toys, and a vibrator is inserted into her, and she climaxes violently with an electric dildo. She's doused in white fluid and begs him to "moisten my pussy," then she pistons with a dildo at high speed, and then she gets a double blowjob and gets covered in semen from a mask. She shows off her crazy sexual habits, and finally ends with a face-to-face threesome. She's a sexy model with a crazy, anything-goes vibe! She spanks her obscenely big ass until it turns red, and then she makes him cum with a loose double fingering, and then she demands, "Put some pantyhose on!" for a threesome with a strange face in pantyhose! Of course, the camerawork, with its focus on her big ass, is a must-see! Black Mask is a 10,000-power ass hell with a super-crazy sexual fetish that's sure to leave even the most aroused fans feeling sick!