Kim Richards is watching her daughter Brooke Brinson walk down the aisle in Cabo San Lucas -- putting her recent rehab stay and Bev Hills arrest behind her ... at least for a day.
Kim and her sister Kyle Richards were seen gathering around Brooke shortly before the ceremony when Paris Hilton posted a video of the whole fam getting ready.
Brooke's dream wedding in Cabo is purely ceremonial -- she and Thayer Wiederhorn tied the knot last August in Beverly Hills, so Brooke's ailing father could attend.
As if a wedding in Cabo isn't baller enough -- the groom is heir to the Fatburger chain ... so there should be some juicy post-dinner snacks.
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