Now and then the internet still has the power to really shock, especially over how little we all learnt at school.
It appears primary school sex education really has failed us - especially when it comes to knowing about women's bodies.
Australian love and dating podcast Life Uncut highlighted the issue when an anonymous listener shared that her male partner believed women possess just one multi-purpose hole in their genitalia.
It raises the basic but very important question: "How many holes does a woman have down there?"
If you're unsure (no judgement), the correct answer is three: the urethra, the vagina and the anus.
According to Aussie lifestyle site Mamamia, Life Uncut co-host Laura Byrne put the question out on her Instagram Story, encouraging female followers to ask the men in their lives their thoughts.
"If you listened to today's episode, we asked a very important question and I need to know your answers," she wrote.
"That is, if you have asked your boyfriends or your brothers, or any other men in your life, if they know how many holes a woman has down there?"
Mamamia shared some of the amazing responses Byrne received, which reportedly ranged from two to six.
"I just asked my partner thinking there was no way he would get it wrong," one person replied. "He said two and then said 'no way show me!'"
"Four. One for urinating, one for number twos, one for period and one for uterus," was another inexplicable answer.
I posed the question to my male colleagues in the newsroom and asked female co-workers to put it to their partners.
My own partner answered correctly straight away, but his use of proper scientific terminology made me suspicious used Google.
From my coworkers, three awas the general, if uncertain consensus - although one married man threw his hands in the air and admitted he didn't know.
And it turns out it's not just men unsure - one woman admitted she thought she only had two.
However, it's not just a female sex issue. Several women - including myself - were unsure of all the piping that goes into male genitalia, despite a consensus over one hole.
Feel free to go forth and ask the men in your own life. Just perhaps not your dad, unless you want to end up having a fairly awkward conversation.