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Denni (55)
Denni O, born August 19, 1948, in the United States, is a former American adult film actress, director, and producer who began her career in 1995 at age 47 and remained active until 2010. Appearing in 127 titles under names like Denni O and Denni O'Brien, she specialized in extreme hardcore genres including gangbangs, creampies, double penetration, fisting, and performances with massive dildos. Transitioning from a swinger lifestyle, she produced and starred in her own long-running series such as Denni O's Amateur Sluts and Real Swingers and the numbered Denni O volumes, often handling production herself to capture authentic amateur and swinger encounters alongside intense fetish scenes. Physically distinctive with red hair, grey eyes, a curvy 5-foot-4-inch frame, enhanced 36F bust, 44-28-38 measurements, and pierced nipples, Denni O carved a unique niche in mature and boundary-pushing adult entertainment through her self-branded, high-energy productions that emphasized endurance and explicit toy play.