Matthew Rhys 'Very Drunkenly' Hit on Keri Russell Long Before They Started Dating

Keri Russell didn't initially remember meeting her 'Americans' co-star.

Keri Russell and Matthew Rhys are a happy couple now, but their first introduction to one another, the 41-year-old actress didn't initially remember.

The two were absolutely adorable on Thursday's Watch What Happens Live With Andy Cohen, and talked about how they started dating after both starring on The Americans. "We actually met a very long, long time ago. I very drunkenly asked for her number when she was a young, single slip of a thing," Rhys recalls, noting that they were in a "parking lot" at the time, "very romantic."

He added, "So, I sort of knew that when I was 26."

WATCH: Matthew Rhys Says
His Parenting Style Is Less Chill Than Partner Keri Russell, Calls Her a
'Reassuring Hand'

Russell -- who welcomed a son with Rhys last summer -- said it wasn't until "after a heavy dose of a fight training, all sweaty" for The Americans  did Rhys remind her that they had met 10 years ago in that parking lot.

"Well, it's a very happy ending," Cohen gushed.

MORE: Keri Russell Reacts
to Matthew Rhys' NSFW Scene on Girls

During the "Plead the Fifth" segment, Russell agreed to play "Shag, Marry, Kill" with her former  Mickey Mouse Club cast mates, Ryan Gosling,
Justin Timberlake and JC Chasez. The Felicity star chose to kill Chasez because they're friends so "he would understand," shag Timberlake because he's a "good dancer" and marry Gosling because he too is Canadian.

Also a big topic of conversation on WWHL was Rhys' prosthetic penis on Girls. Russell was asked how "accurate" the prop was to the real thing, of which she admitted that she'd yet to see the episode. As for whether Rhys kept the penis prop after filming, the 42-year-old actor quipped, "Sadly the second they said cut, it was snatched cruelly from my hands for the simple reason that I think they saw how much I was coveting it."

WATCH: Matthew Rhys Reveals He Feels 'Protective' During Keri Russell's Naked Scenes on The Americans