Doi Sinn is a prominent male submissive performer in the femdom and female supremacy pornography niche, best known for his extensive work with the House of Sinn studio. Featuring in over 410 videos across platforms like Clips4Sale and xPomelo, he portrays the archetype of a devoted chattel slave. Owned, collared, and kept in chastity by Matriarch Ezada Sinn, Doi Sinn endures intense BDSM sessions including strap-on pegging by Giada Da Vinci, foot worship and licking for Mistress Amanda, spit and fart feeding, anal play, and total humiliation. His scenes emphasize themes of matriarchy, denial, and unwavering obedience to dominant women like Mistress Lexy Noir and Lady Yna. Residing in Köln, Germany, while closely tied to the House of Sinn in Bucharest, Romania, he shares his lifestyle on Twitter (@doiSinn). Active since at least 2023, Doi Sinn has become a staple in custom femdom clips, embodying ultimate male submission in modern adult content.