Carissa Capeloto -- now 22 -- claims she was forced to have sex with Sean, his bodyguard and a member of Sean's band at a Seattle hotel in July, 2010, after she had smoked pot and downed 7-10 shots of vodka.
Capeloto -- who has sued all 3 men -- alleges she'd been invited to Kingston's hotel room for a meet-and-greet following a Bieber concert -- where Kingston had also performed -- but when she showed up ... Kingston was waiting naked on his bed.
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