A HORRIFIED mum had to apologise after putting a book with sex tips in kids’ goody bags.

The right-on parent gave 1001 Ways You Can Save The Planet and other treats to seven-year-olds after her daughter’s birthday party.

The book features tips on how to be environmentally friendly, such as not leaving appliances on standby.

But there is also a section on sex, which includes advice on “animal-free bondage gear”, “solar powered vibrators” and choosing “eco-lube”.

Parents whose children went to the party in Stoke Newington, North London, tweeted how they’d had panicked texts from the mum.

After her mistake went viral one user said: “I was guessing it was on page 69?”

Another wondered if they’d have to leave “the lights on” to use the solar-powered sex toys.