There's a rumor going around that Nas is not the real father of three-year-old son Knight -- his son with Kelis. According to Bossip.com, a source said, "Kelis is keeping a secret. The father of her son is former football player Wale Ogunleye not Nasir Jones. After adult freaky tape allegations leaked featuring Kelis and a man other than her husband she decided to become pregnant to save her failing marriage. She thought it would take a few months for her to conceive but she was pregnant within a month. She and Ogunleye were having an affair and things happened so quick she was uncertain of the child's paternity. That's why she refused to allow Nas into the delivery room and refuses to allow him to visit her son without her or the nanny."