Big Brother 'Big Brother' houseguests Derek Xiao and Claire Rehfuss reveal they are dating 10/18/2021 Big Brother houseguests Derek Xiao and Claire Rehfuss have revealed they are dating after their friendship took a romantic turn in the Season 23 jury house. Read More RELATED NEWS 'Big Brother' alum Derek Frazier reveals 70+ pound weight loss'Big Brother' Season 23 winner Xavier Prather engaged to girlfriend Kenzie HansenBlack 'Big Brother' houseguests unite to celebrate breaking ground on the franchise TAGS: Big Brother Julie Chen Little Sister
