Rias Gremory from Hig School DxD, nude from the bottom, (vagina), (shaved pussy), her hands are tied up with metal cuffs, (her legs are tied up as well), she is restrained, she is upside down on a futuristic dildo sex machine with a metallic rod, (face down), (dildo in her mouth, She is sucking on that dildo), (The other dildo with a metallic rod in her vagina), her pussy is dripping, wet pussy, gigantic empty laboratory chamber, (The gigantic empty laboratory chamber consists of big red tiles), (very detailed big red tiles in the background), (One-way glass window in the background), she is looking st viewer, masterpiece, very detailed image, 4k image, (burns:1.5), (bruises:1.5), wide open pussy, clitoris piercing, nipple piercing, dripping pussy, barcode on pubis, wounds, cuts, marks of blows, marks from a whip, burns, scars, bleeding, brand, bruises, contusions