A 25-year-old man can no longer use his penis after his 17-year-old girlfriend poured acid on his genitals to punish him for distributing a pornographic video he'd taken of her without her knowledge.

The girl, whose name is known to African Eye News Service (AENS) but cannot be published because she is under age, attacked Humphrey Khoza with battery acid while he was drinking beers with friends at a tavern in Cork village near Hazyview, Mpumalanga, on January 17.

"Everything happened in a blink of an eye because I saw her when she was coming with a bottle but I didn’t realise that she was carrying acid. She just angrily called me a dog. She asked how in the world I could have done such an evil thing to her. It was only then that I realised that she was talking about the video that I took while we were having sex," said Khoza.

Khoza said he had been dating the schoolgirl since December.

"We agreed to have sex, but she was not aware that I was filming the sex using my laptop computer. I did not intend to show anyone the video and I still

don’t know how it got onto social media," he said.

In the viral video that AENS has seen to verify the claims, Khoza is seen pushing the girl, who was in her school uniform, to the bed. She appeared not to notice that she was being filmed while they had sex.

The remorseful Khoza added that although his penis would never work again due to the damage caused by the acid, he was lucky to be alive.

He said he was advised to press charges against the girl, but doesn't see the point.

"Even if I press charges it is useless because it won’t bring back my manhood. Her being in jail will just ruin her future because she is still young and I do not have the energy to attend courts," said Khoza.

He now has to urinate through a tube and has to undergo surgery.