Who? Man whose penis was chopped off by his angry wife, then reattached by doctors.
Real? Yes, he made two hardcore porn films in the 1990s.
In June 1993, John Wayne Bobbitt drunkenly assaulted his wife, Lorena Bobbitt. After he fell asleep, she took a carving knife from the kitchen, chopped off half his penis, drove away, threw the severed penis into a field, then called 911. Police managed to find the penis in the field, and a surgeon managed to reattach the penis. The Bobbitt case became tabloid fodder for months.
In 1994, John Wayne Bobbitt showed off his surgically repaired member in a hardcore porn film entitled John Wayne Bobbitt: Uncut (get it?!?!?). He reportedly received the highest fee ever for a male porn actor. In 1996 he made another adult film, the equally subtly titled John Wayne Bobbitt’s Frankenpenis.
Both titles are available on DVD. Scenes from these two films show up online under various titles. They’re occasionally included in lists of “celebrity sex tapes”, even though they don’t really fit the usual definition.