The breast advertising strategy?

When an ad showing a solitary person uses the plural "their," I look around for, y'know, groups of people. This truly weird ad for Maidenform bras in the hipster parenting magazine Cookie seems to be suggesting something more akin to Brigid Berlin, Warholian "tit painter," than the off-camera wee ones whose dreams are mentioned (i.e "the girls" we see instead of the ones we don't).