Ashlee Simpson and Nicole Richie were snapped out and about with their adorable tots this week.

Ashlee - who reunited with touring husband Pete Wentz in New York a few days ago - took son Bronx, six months, on a tour of New York's kid-friendly hotspots, starting with toy store FAO Schwarz.

Meanwhile, over on the West Coast, Nicole - who is pregnant with her second child - stepped out clutching her curly-haired 15-month-old daughter, Harlow in Los Angeles.

Earlier this month, firm friends Ashlee and Nicole double-dated with their baby-daddies in the Big Apple, amid rumours there could be another Wentz-Simpson cutie on the way.

See below for more mommy moments