50 Cent is asking a Florida judge to stop Rick Ross’ ex, Tia Kemp, from allegedly cyberstalking and harassing his 14-year-old son, Sire. In court documents, the rapper claims Kemp repeatedly mocked the teen online, called him “slow,” and made comments about him being on the autism spectrum. He says the posts have caused his son humiliation and emotional distress, and that a cease-and-desist letter failed to stop the alleged behavior. He’s seeking an immediate court order barring further harassment. Kemp has not yet responded to the allegations.