The actor claims he and his Hollywood star wife will have a family at some point in the future but are happy being a twosome for now.
Ryan - who married Scarlett in 2008 - also quashed reports the pair are adopting a baby, branding the claims "absurd".
He said: "I would say Ninety-nine point nine percent of it is just absurd. Silly, you know. And then maybe a relative will call me and ask if I've adopted a baby from Ghana.
"We've not adopted anyone. A few years down the road, we'll be having a family. But that's years away at this point."
Ryan - who is currently shooting comic book movie 'Green Lantern' - also admitted his image with fans is far from family man but more "party guy" since he starred in comedy movie 'Van Wilder' in 2002.
After appearing in the hit film as an out-of-control university student he is regularly invited by fans to knock back drinks with them at the bar.
Talking about the movie, the 33-year-old star told America's GQ magazine: "It made me the party guy. I walk into a bar and people start lining up the shots."