Tristan Thompson's Alleged BM Calls Him and Khloe Kardashian Out for Trying to 'Scare' Her Celebrity Kimberly Alexander, who claims the NBA star is the father of her child, suggests the basketball player and her rumored girlfriend are sending people to kick her out of California. Mar 12, 2021 Khloe Kardashian are trying for baby No. 2, the athlete still refuses to acknowledge he's the father of another woman. Kimberly Alexander, who is adamant that the NBA star fathered her son, has taken aim at the Boston Celtics center/power forward for allegedly trying to "scare" her "out of Cali." "@realtristan12 stop sending people to my home and take another test," Kimberly wrote on her Instagram Story on Thursday, March 11. "trying to scare me ain't working! I'm not going anywhere."