Bonnie Blue has been "punched" in the face during a nightclub appearance.

RadarOnline.com can reveal the adult star, 26, was allegedly attacked by a woman waiting in a queue to meet her. Article continues below advertisement

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Blue, real name Tia Billinger , was at the venue as part of her "Barely Legal" university tour of Great Britain , which features her infamous "Bang Bus".

The controversial star offers "interactive mini-games" and "high-energy DJ sets", but strictly prohibits "sexual behaviour".

But Thursday night's event descended into chaos just 40 minutes after Blue arrived at a nightclub in Sheffield, England.

An eyewitness said: "I saw a woman talkin

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