Article continues below advertisementSami Sheen unveiled a shocking bombshell about her sister Lola Sheen.In a Wednesday, January 14, TikTok, the reality star stared at her phone with a dumbfounded expression on her face alongside the message, "Imagine finding out your sister and ex-boyfriend have been seeing each other behind your back this whole time."Article continues below advertisementSami Sheen Outs Sister Lola for Dating Her ExSource: @samisheen/instagramSami Sheen accused her ex and her sister Lola of secretly dating.