Olympic Gold winner Michael Phelps finally revealed who he's current dating.

On Monday night, Phelps stepped out with his girlfriend, and aspiring model, Megan Rossee, for the Speedo Athlete Celebration in London, where he put the final touches on his 22-medal career at the 2012 Summer Olympics, according to People Magazine.

The couple was all smiles as they posed together at the Kensington Roof Gardens.

Phelps and Rossee began quietly dating in the beginning of the year, according to reports.

A source confirms to E! News that Phelps, 27, is dating the 25-year-old from Los Angeles.

Rossee even cheered on the great Olympian at the trials in London. She's also been actively tweeting about Phelps, recently posting a pic of the two of them getting all cozy and sweet, according to E! Online.

E! Online also reported that last week, she took to Twitter to express just how much she missed her man, writing, "@MichaelPhelps this probably will get lost in your tweets but since i cant text i miss you and cant wait to spend time with you for real xo."

A few days later, she rallied behind Phelps: "good luck tonight bear @MichaelPhelps: Last prelim swim complete... 2 big ones tonight... Nap time now..."

Rossee is size 2 model, 5'10 and 125 pounds, according to reports.

The New York Daily News revealed bikini photos of the aspiring model.

She appeared in fine form during a swimsuit shoot in Southern California last December, right before she began dating Phelps.

Some reports blasted Rossee, saying that she is only with the swimming superstar to for her own personal gain. However, her father, Wayne Rossee, quickly defended her daughter, according to the Huffington Post.

"She had a career in her own right before she ever met Michael," Wayne told RumorFix.com. "In fact, she put things on hold to support him and go to London like he asked her to. She is not with him to be famous, she doesn't need that from him."

Wayne also told RumorFix that his daughter and Phelps met in February at a Las Vegas club and has been dating ever since.

He was the first to confirm the romance, telling Celebuzz, "Yes, it's true. I haven't met him yet. I will soon. He's been kind of busy."

It looks like Phelps really struck gold this time.