American fashion designer Alexander Wang is facing further allegations of sexual misconduct.
Keaton Bullen, 21, a student at New York's Parsons School of Design, has alleged to BBC News he was assaulted by Mr Wang at a club in the city in 2019.
It comes as the high-profile lawyer Lisa Bloom says she is now representing 11 men with misconduct allegations against Mr Wang.
Mr Wang robustly denies all the claims made against him.
'I completely froze'
Mr Bullen, then 20, was with a friend at the Fishbowl club in New York City when he says he encountered Alexander Wang on 24 August 2019 at about 11:30pm.
He told the BBC they had initially talked about their mutual alma mater, Parsons School of Design in lower Manhattan, where Mr Bullen is currently studying interior design.
Mr Wang then invited the pair to his table and and offered them vodka by the bottle before eventually leading him to the dance floor, Mr Bullen said.
In the early hours of the morning, Mr Bullen alleged, Mr Wang sexually assaulted him.
"All of a sudden he unzipped my trousers, put his hands in my pants and started grabbing my penis in front of a bunch of people," he said. "I completely froze.
"He then said: 'I want to take you home with me,'" Mr Bullen alleged. "I felt weirded out... and removed myself from the situation as fast as possible." pgslot
Paul Tweed, one of Mr Wang's lawyers, said he was currently awaiting CCTV footage of the club from the night which he said "his client believes will totally disprove this allegation".
Mr Bullen said he felt a duty to speak out to support others who had come forward with allegations and were being called "liars".
He is not taking legal action and said he did not want his photo used, out of concern the public would accuse him of seeking attention.