Tyga Stiffed Sex Assault Accuser ... Allegedly

The woman who sued Tyga for sexual assault
has a Rihanna-esque message for him -- "Bitch
better have my money" -- 'cause she says he still
owes her a ton o' cash from their settlement.
Allison Brown sued Tyga over a wild 2011 music
video shoot ... where she claimed she was plied
with alcohol, forced to appear topless on
camera, and dry humped by some dude in a
rabbit suit. She and Tyga settled the case out of
court earlier this year, and according to her
attorneys ... Tyga was supposed to pay her
$50,000. Brown says she got half in February,
but still hasn't seen the other $25k. She's filed
docs asking a judge to force Kylie Jenner's BF
to pay the balance, AND tack on a financial
penalty for her trouble. No word from Tyga's
camp on the $25,000 question.