The blonde was at the blood bank and sold a pint of blood. As she was leaving counting her $25, a man was leaving counting his money. He had $40. She asked if he had some rare blood type that he got more than she did. He said no, that he had donated sperm. The next day the bimbo was back at the blood bank. The receptionist asked if she was there to donate blood. The blonde could only shake her head, as her cheeks were bulging.