Two days after Olympic diver Tom Daley revealed he was dating a man, his partner has been named as Oscar-winning screenwriter Dustin Lance Black.

Black, who is 20 years older than Daley, is a prominent LGBT rights activists and reportedly played a key role in persuading Daley to come out.

A founding member of the American Foundation for Equal Rights, Black won an Oscar in 2008 for Milk, a gay civil rights movie which starred Sean Penn.

Reports suggest he met Daley at the Kids Choice Awards in Los Angeles in March, and since then sources close to the pair claim they have been inseperable.

Daley confessed he was in a relationship with a man in a YouTube video, telling the world: "In spring this year, my life changed massively when I met someone and they made me feel so happy, so safe and everything just feels great.

"And that someone is a guy. It did take me by surprise a little bit. It was always in the back of my head that something like that could happen, but it wasn't until spring this year that something just clicked. It felt right and I thought, 'OK,' and my whole world changed there and then. Of course, I still fancy girls, but right now I'm dating a guy and I couldn't be happier."

The couple have been reportedly spending a lot of time together. Sources close to the couple also claim that they are very much in love and looking for a long term commitment.

"He's besotted with Dustin. They love each other and aren't concerned what anyone says about age difference," sources close to Daley stated.

"Dustin is very proud of Tom for making such a powerful statement about his sexuality. They are officially in a long term relationship and are talking about having a future together," they added.