Sylvester Stallone`s mother wants him to donate sperm

London: Sylvester Stallone`s mother has asked the action star to donate sperm to her new firm that will specialize in selling celebrity sperm. The `Celebrity Big Brother` star Jackie is reportedly trying to persuade her 66-year-old actor son to join the donor`s list, the Daily Star reported. Jackie, 91, told US magazine Globe that she has got 20 celebrity studs on the books. She added that she wonders if she could get 50,000 pounds for her son`s sperm. ANI