That's a whole lot of projection going on there LipSmack. I didn't post the family of gun-lovers to demonstrate that it was disturbing - I posted it to highlight that when it comes to self representation, it's different strokes for different folks. I'm not judging either of these families. EITHER of them. A family wants to get nudey and play stacks-on, I can't see the harm in it. The only harm that comes of it is through the projection of one's own association of sexuality with nudity. And, as Yankee pointed out, the instant and wide dissemination of content that the internet now affords means images have to be carefully vetted before publishing them online.
On the question of disturbing, cultural context is important. Many cultures and sub-cultures don't consider nudity in and of itself to be a harmful thing - regardless of where you think the pee-pees and hoo-ha's are in relation to one another in that image. In that context, who are you to judge the general distaste that others should share in observing that scene? It's distasteful and weird to you, and others who share your general aversion to nudity in a family context.
On the other hand, I live in a culture where guns are not normal. The idea of a family posing with firearms is, broadly speaking in my cultural context, weird. But I accept that, judging on how that family is presenting itself with smiles and close physical proximity to one another, they're just a family that collectively loves guns and wants to express themselves as such. That people should project their own morality onto others who are harming nobody through their actions is weird to me.