Benedict, a former teacher-turned-porn star, has been quizzed about his penis size by a number of his female housemates, but Becky was the first to get a concrete answer from the 32-year-old.
"Is it quite large?" she asked.
Benedict replied: "I'm happy with the size, I wouldn't say my penis is enormous. When it's erect it's about eight inches, the average I believe is six.
"I've seen other guys' penises and there's a variety of sizes, but obviously not small."
Benedict has spoken openly with his housemates about his adult movie career, admitting that he has done live webcam sex shows and that he considers all humans "sexual beings".
Big Brother continues tonight at 10pm on Channel 5.