A 27-year-old man living in Los Angeles has already fathered 18 children, but he doesn't play the role of 'dad' to any of them — and that's just how the mothers wanted it.

Kyle Gordy's Facebook page features a string of positive pregnancy tests, which he proudly shows off. But Kyle's happiness isn't about raising kids of his own: He's thrilled to be helping women who want children by donating his sperm.

To date, he's fathered 18 kids, and those positive pregnancy tests on his page indicate he's impregnated even more women in the past few months.

Daddy! Kyle Gordy donated sperm for the first time in 2014 and has father 18 kids so far, with even more on the way

According to the Mirror, which christened Kyle 'the world's most popular sperm donor', his sperm donation services have become quite in-demand since he first started advertising them on Facebook four years ago.

'I'm a very, very popular guy. 100 people hit me up every month. I'm in high demand. I can't help everyone but I usually donate to between two and five people every month,' he said, noting that his services are free.

Kyle works with both single women and couples who aren't getting pregnant on their own.

And while most of the women he's donated to simply take a sample of his sperm and and inject it at home with a syringe, about a quarter of them have sex with Kyle to get pregnant the old-fashioned way.

'When we have sex we try to make it fun,' he said.

Kyle first decided to donate his sperm in his early 20s when he realized that he simply got too bored in relationships.

Bun in the oven: He doesn't want to be tied down in a relationship but wanted to have kids, and he proudly shows off positive pregnancy tests online

Spreading his seed: He helps single women and couples and has sex with a quarter of his clients

'Sperm donation gives me an outlet, I have no pressure to find a girlfriend but I still get to have children. For me, sperm donation is a substitute for having a girlfriend,' he said.

Career: On Facebook, he lists his job as 'CEO of sperm donating at sperm donor

His first clients, a couple, now have a four-year-old and a 14-month-old — both through Kyle's donations.

Since then, he's donated sperm in Los Angeles, San Francisco, Colorado, and Texas — and he wouldn't mind take his swimmers overseas next.

'If anyone in the UK wants my services I am happy to travel. I'd go anywhere to help women out, apart from North Korea or any war zone,' he said.

His clients have ranged from 18 to 42, and he gets 'lots of repeat business'. Though he doesn't discriminate based on age, he does make sure that the child will be supported financially.

Kyle also insisted that there are several good reasons for choosing him over going the sperm bank route.

Passing it on: Kyle says he is a favorable choice because he comes from a good family, though his mother questions his life choices

He says he comes from a good family, with two educated parents — a lawyer father and programmer mother — and will be passing down those genes.

He also argued that sperm banks may have trouble tracking the offspring of repeat donors — so those offspring may not know when they encounter a brother or sister — but there's no such risk with him, since he has a Facebook group for the families he donates to.

Though he's not taking on a traditional parenting role, he does feel a 'satisfaction' in having children and hopes to have a giant Father's Day party with all of his biological offspring in 20 years.

His own parents have mixed feelings about his donation habits. He said they are supportive, though his mother often reminds him that they are not really his kids.

'Overall, they've been fine about it though. My brother makes a lot of money and I make a lot of children,' he said.

History: Kyle shows prospective mothers what he looked like as a child, outlines his education level, and details the occupations of his brothers and father

Kyle first made headlines in 2014 when he first started donating his sperm and was was working towards his master's degree in accounting.

Speaking to 20/20, he helpfully listed of the traits that he thought made him a desirable sperm donor.

'I don't do any drugs. I don't smoke. I don't drink. I don't drink caffeine. I eat only sperm-friendly food: wheat, brown rice ... fruit and vegetables,' he said. 'Right now I'm attending university. Both siblings are engineers. The nuclear engineer is my twin. My grandpa was a scientist.'

He also offered up photos of himself as a child and bragged about his IQ.

Gordy told ABC News that he was not just looking to have sex with women, but to genuinely help them to have a child.

'I'm passing on my legacy and giving these people kids,' he said.