Horror moment sicko janitor ‘infects woman with incurable STD by secretly putting manhood in her water bottle at work’

He then dipped his manhood in "halfway" before "tilting the bottle back and basically rinsing his penis in my water," the woman said.

She claims the caretaker also urinated in her water and had been doing it for months.

The married mother of two has since been diagnosed with an incurable sexually transmitted disease - the same one that Diaz tested positive for after his arrest, court papers claim.

She told ABC13: "He gave me an STD I will have for the rest of my life.

"Nothing is going to change it. Nothing will make it better for me. In fact, I feel like, for the rest of my life, I will have to be careful."

The woman, 54, said she first became suspicious in August after noticing a taint and unpleasant odour in the water dispenser in the doctor's office where she works in Houston.

After that she decided to drink only from bottles she had brought in from home.

Later she found leftover water smelled equally foul so she threw it away.

In September when a coworker offered to make her a coffee she asked her to use water from the bottle - and the other woman asked why it was yellow.

The victim told : "I raised it to my face, smelled it, and it smelled like urine."

Another employee said she thought the same thing had happened to her.

After that she set up spy cameras to catch the culprit. And an analysis of the water confirmed it contained urine, court papers state.

Mexican national Diaz was arrested and is now in immigration custody, reports say. His work status was unclear.

He has been charged with indecent assault and aggravated assault with a deadly weapon

Eleven other potential victims have since come forward and are awaiting results of STD tests.

The first victim said: "This individual is a sick man.

"I want this to go to trial. I want him to be exposed for who he is, and I want him to pay for what he's done to me and then be deported."

She has also filed a lawsuit against the building's owners, claiming the janitor was allowed to keep working after he was reported.

Attorney Kim Spurlock said: "They have a duty to protect their tenants, and they wholly failed in those responsibilities."

Terry Quinn, boss of landlords Altera Fund Advisors, said: “Our management company immediately cooperated with the police department in this matter as soon as we were made aware of this potential issue by our tenant.

"They were advised by the police to not alert or approach the alleged perpetrator so that he could be arrested.

"He was arrested when he returned to the building."