"We're not really thinking about it yet," Teigen, 28, told PEOPLE Monday at the Fragrance Foundation Awards in New York City. "Most of my friends have kids actually, and basically, nobody ever says, 'I wish I would have had them earlier!' So at this point, I'm having a lot of fun playing with my friends' babies."
She's certainly been getting a kick playing nanny – until the toddler waterworks start to flow.
"I think I've seen my best friend's kids all week, every day this past week," she says. "I love hanging out with them, and it's nice being able to hold them then pass them over when they start crying. Amazing."
For now, Teigen's happy nurturing their new furry family member, named Penny. "If dogs are the starters for babies, we should have three or four babies by now," she recently told PEOPLE. "I like to think of ourselves as working on babies all the time. And working on getting dogs all the time."