Sexually explicit materials and books are increasingly being added to school libraries and curriculums. Activists claim it is a necessary step in the education of children after the de-gendering of marriage.

Alarmingly, some of the content is suitable for adults-only.

Students in a Wisconsin school district have access to a slew of “sexually explicit” books via their school-provided computers, including content that dubs traditional views of marriage as “ignorant”.

Elmbrook School District offers students access to books and information via an online library called SORA. The SORA database — which can be accessed by students as young as eight years old — includes books such as “This Book is Gay,” by Juno Dawson, and “Queer,” by Kathy Belge and Marke Biesche.

“This Book is Gay” offers a play-by-play of how to use Grindr and other “sex apps”.

How sex apps work:

1. Upload a tiny picture of yourself to the app.
2. The app works out your location
3. The app tells you who the nearest homosexuals are.
4. You then chat to them.
5. Because they are near, it is easy to meet up with them.

Another book concerning parents is simply called “Queer”. Parents have described the book as “sexually explicit”, as it provides students with an in-depth analysis of anal sex, oral sex, one-night stands, and “vaginal sex with dildos”.

These materials are being offered to children without parental knowledge or consent in many cases.

Binary spokeswoman, Kirralie Smith, said parents need to be aware.

“Extremists are targeting our children,” she said.

“It is essential that parents know exactly what programs and materials their children are being exposed to.

“These books could be available to your children. It is essential to communicate with your child’s school and to monitor what they are being exposed to.

“Sexualising kids is never okay!”