Harry Styles Smitten with Baby as He Pushes Stroller Down London Streets

Harry Styles looks like he's in the market for a bambino, because he was totally smitten with someone else's baby.

Harry was out and about in London, pushing a stroller with a friend's baby inside. Harry was making faces last week and generally doing baby stuff with the woman's kid.

The 24-year-old and the infant braved England's winter temps -- it never got out of the 30s.

Harry's dating Camille Rowe, a french model and actress, who's famously worked with Victoria's Secret.

But we're hearing the baby just belongs to a friend Harry had lunch with that day.

Still, check out his face as he pushes the baby down the street ... the ex-One Direction singer is definitely into babysitting ... if not fatherhood.