Other concerns in regard to kids in light of things

As Mike touched on last week, there is something inherently problematic about being a parent and kinky or in a non-standard relationship. He expressed his concerns about not knowing exactly where to start on explaining his/our life, and if he should even do so in the first place.

To be honest, I have concerns as well, but in a completely different realm.

Let's look at the facts: Mike's son is being raised by four parents:
-a conservative Christian lesbian mother
-her butch lesbian wife
-a kinky sadist poly demisexual father
-and me, an open-minded pansexual mildly kinky chronic masturbator (or something)

So my first question in regards to my stepson would have to be, "What if he grows up to be kind of normal?"

My second question would be something along the lines of, "who is going to guide him when it comes to being an average boy when he hits puberty?"

By all accounts, it seems likely he will turn into the average cis-gendered straight boy in a few years. He already seems to have a fondness for ladies, and he's just, you know, a boy. My worry is that he won't have a good basis for understanding how to appreciate his body, his sexuality, and not grow up in the dark about how this whole thing works and how to be safe.

Mike said his ex-wife gave their son "the talk" a few years ago, but we don't know exactly what that means. Did she give him the technical overview and then tack on the "and God doesn't want you to do this until you're married" bit at the end? When he hits puberty, is she going to teach him that masturbation is wrong and he is a monster if he does it?

He takes after his father in a lot of ways, so maybe sex won't be a thing that even occurs to him to care about. But if he does, it seems I had the closest to a "standard teen-boy libido" of everyone currently parenting the boy. So I guess, of everything, I'm not worried he'll find out about how his father and I are, but that he won't understand that there are healthy and unhealthy ways to show one's inherent sexuality and some people have odd ideas about what that means. I don't want him to grow up ashamed of his desires (assuming they don't end up being destructive to himself or others, which, statistically, is probably unlikely) and I don't want him to be unjustifiably conflicted over having desires in the first place, regardless of how "normal" they are or aren't.

The last thing this world needs is more people who don't know how to treat themselves and others. I still believe that most of us are trying our best on any given day (sometimes, as my mom likes to point out, our best kind of sucks), but there's sometimes only so much we can do with the information we are given in the first place.