Article continues below advertisementNBA star Ben Simmons' sister Olivia Simmons dragged Kendall Jenner in a ruthless TikTok.Olivia shaded the reality star, 29, and had some choice words for the rest of her family. Ben and Kendall dated on and off between May 2018 and May 2019.Article continues below advertisementSource: @livvyschannel/TikTokOlivia Simmons unexpectedly dragged Kendall Jenner online.