Getting children to look up images of masturbating animals is so ludicrous as to almost be hilarious. I'd love to see the teacher's face if little Billy brought in a drawing of Simba or Shere Khan knocking out a crafty one! Red flags aplenty and rightly so.
Goodness only knows what the children would find in the process of looking up such images. An image search of 'The Family Sex Show' is already bad enough.
People are far too sensitive to the idea of an influential evangelical right-wing pulling the strings behind the scenes here. As someone who moves very much in that kind of world, I don't know a single Christian family or mainstream faith school that thinks that an abstinence approach is a good idea.
In fact the idea of a suppressive religious right is exactly what the sex positive people need in order to sell their ideology. There are thankfully very few children who grow up these days without an understanding of sex and sexuality or who are genuinely intolerant.
It's perfectly possible to teach children important things about how to keep themselves safe within the context of sex and relationships without exposing primary school kids to concepts of pegging, squirting, anal sex and play parties.
What the people behind this show have done is to take a kernel of truth - it's good for families to be open about sex, it's good for children to be given the information that they need to make good choices, it's good for children to learn that bodies aren't dirty etc and produce a totally distorted narrative.
People have been working out how to have fun in bed for millennia without the need to encourage children to get involved.