Did she also order them for your children as birthday presents ?
It might help them as they choose a career.
As for whether I'd give to my own children (which I don't and won't have but that's another discussion for another day), maybe when they turned 18. I don't think I'd have a problem with my kid posing in Playboy, they pay well and if the model has any smarts or drive it can be a gateway to a good career in acting or "legit" modeling (pick up any Fredricks or Victoria's Secret catalog, they're who's who of Playmates from 4 to 6 years ago; of course the entire female cast of Baywatch were Playmates). As for the hypothical kids getting into hardcore I wouldn't be happy with that, but that's because of the world that exists around hardcore porn not the porn itself.
Of course I've actually worked in the world of smut (just a strip club DJ unfortunately, no really cool stories to tell involving famous women) so I have an understanding of it that I'm sure terrifies you. Over all it's just a job. I've also flipped burgers for a living; if I had a choice for my kids between the two I'd steer them towards stripping, it pays better (a LOT better), it's better on the complexion, and the hours are short enough they could easily go to college. Which reminds me of the very good looking Bay Area laywer I know... Alas also another story for another day.