A stage assistant from San Francisco has launched legal action against a gay pornography company after he was allegedly forced to inject performers with a controlled drug to prolong their erections.

The San Francisco Chronicle reports that Ronald Baker claims he suffered emotional distress and anxiety-induced health problems when he accidentally pierced his finger in January of this year after injecting a performer in the penis with TriMix, a prescription medication used to treat erectile dysfunction.

Mr Baker has filed a lawsuit against Adult Entertainment Broadcast Network – the company is based in North Carolina.

When the incident happened, Mr Baker started to worry about HIV infection from the needle.

It’s claimed his bosses told him they did not know what to do, according to the lawsuit.

The models did not have medical prescriptions for TriMix and Mr Baker refused to administer further injections because doing so was in violation of Californian law.

Mr Baker’s attorney, Elisa Stewart, told San Francisco Superior Court last week that his paychecks and health benefits were then cut off by the employer.

He is suing for wrongful termination, emotional distress and violations of employment and business codes.