Jason Segel and Michelle Williams have been keeping their budding relationship under wraps as much as possible, though clearly things are serious -- the "How I Met Your Mother" star was just spotted out with Michelle's daughter Matilda!

The 6-year-old girl, whose dad is the late Heath Ledger, walked hand-in-hand with Jason in New York City on Wednesday.

The pair appeared to get along great, with little Matilda even busting out some dance moves for her super-tall new pal. So cute!

media_removed_toofab 2013

The Oscar-nominated actress, 31, and Jason, 32, have known each other for years -- reportedly meeting through Michelle's BFF and "Dawson's Creek" castmate Busy Philipps, who was also his former "Freaks and Geeks" costar!

First sightings of the pair as a couple started cropping up in March, shortly after Jason cryptically tweeted "If I fell in love would you guys be happy?"

The tweet has since been deleted.

Do you think Jason would be a good dad? Let us know in the comments below!

Hot Videos