Tom Daley's boyfriend is reportedly the Oscar winning screenwriter Dustin Lance Black, 39. The British Olympian came out as bisexual in a YouTube video posted on Tuesday (December 2), explaining that, although he is still attracted to women, his life dramatically changed when he met his boyfriend earlier this year.

Tom DaleyTom Daley's Boyfriend is reportedly Dustin Lance Black

It was presumed that Tom Daley's boyfriend was a non-celebrity, but the wily foxes at The Sun report that he is in a relationship with the Hollywood screenwriter Dustin Lance Black, who won an Oscar for writing the 2008 movie Milk - with also won Sean Penn the Academy Award for Best Actor. He's also written J. Edgar - the Clint Eastwood movie with Leonardo DiCaprio - and 8. 

Black - a LGBT rights activist - wore a white knot to the Oscars in 2009 as a symbol of solidarity with the marriage equality movement. 

In his acceptance speech, he spoke of the influence of Harvey Milk's story on his own life, saying, "It gave me the hope to live my life, it gave me the hope to one day I could live my life openly as who I am, and that maybe even I could fall in love and one day get married... 

"But most of all, if Harvey had not been taken from us 30 years ago, I think he would want me to say to all of the gay and lesbian kids out there tonight who have been told that they are less than by their churches, or by the government, or by their families, that you are beautiful, wonderful creatures of value, and that no matter what anyone tells you, God does love you and that very soon I promise you, you will have equal rights federally across this great nation of ours."

Dustin Lance BlackDustin Lance Black

Meanwhile, Daley has received a slew of supportive tweets from the likes of Matt Lucas, Kylie Minogue and the football presenter Gary Lineker.

"In spring this year my life changed massively when I met someone, and they make me feel so happy, so safe and everything just feels great," Daley said in his YouTube video, "That someone is a guy."

Tom, who is currently training for the Rio Olympics 2016, is set to present a second series of ITV's dive show Splash.