As you will no doubt all remember, there is a guy out there in the world who claims to have two penises. Two fully-functioning 10-inch penises, right next to each other, and both of average size.
And he even had the photographic evidence to back it up.
"Some have been like WOW. Some have been like THAT’S FAKE! Some have freaked out, called me names"
Click HERE if you want to check out the picture - although we'd like to point out that, once you've seen it, you can't unsee it. It'll be burned onto your retinas forever.
So now that you've forwarded that photo to everyone you know (don't pretend - we were exactly the same), it's time to get down to the meat and two veg of this story.
Because DoubleDickDude, as he's known to Reddit users, isn't just bragging about his dual-penis and sleeping with thousands of men and women.
He's written a book all about what life's like with a double sausage - and it's actually incredibly interesting.
Speaking about his E-autobiography - Double Header: My Life with Two Penises - the anonymous author told Rolling Stone why he had decided to write the book.
He explained: "Before I was 'DoubleD***Dude no one cared about what I had to say.
"Since then, I've been able to help people who felt alone or lost.
"I've gotten so many messages from people who need encouragement for one thing or another.
"With so much negativity in the world, the ability to bring something positive to the table is a great feeling."
In the memoir, he recounts the practicalities of living with a condition so rare that only 1 in 5.5 million men are born with it - and even fewer with penises that both function normally.
To get an idea of what to expect from the book, we’ve taken a look back over his infamous Q&A session on Reddit.
Read the best bits below...
How do women react when they find TWO penises waiting for them?
Firstly DoubleDickDude has explained that women tend to be either really curious or totally horrified by his package - and that the majority of them change their minds when it comes to riding the double-barrelled peen for themselves.
“Varies from girl to girl. Some have been like WOW. Some have been like THAT’S FAKE! Some have freaked out, called me names. For the most part, girls were nervous and some changed their minds at the last minute.
"I've been in a serious relationship with a girl and a guy for a while now. I call it monogamous because we are exclusive. She enjoys it. The three girls before her enjoyed it. It's sort of made a few run screaming in the past. Usually the ones I get to know well before we date are cool with it. I don't talk about it otherwise. Like, if I'm not going to have sex with you, you won't know I've got two dicks. LOL"
... and men?
DDD, who is bisexual, says men tend to be a whole lot more into the whole two penises thing.
“Dudes NEVER change their mind, they always want it even if they’re freaked out a little.”
How does DDD batter his sausages in the bedroom?
Sure, he's had a fair few one night stands - but, nowadays, DDD is focused on just one man. And one woman.
One for each penis, we thought - but we were wrong. As it turns out, DDD's partners enjoy taking both penises in the same (ahem) hole at the exact same time.
Ouch.
“My bf and gf can take both in them, so it’s pretty standard. But in the past with partners who had smaller or tighter holes, I had to start off using one but by the time I was done I had used both.
"It's nice. I like hearing the moaning from the person I'm squeezed inside of."
Double ouch.
Does it feel... erm... good?
Before you go feeling too bad for his sexual partners past and present, it turns out that life with two penises isn't a picnic for DDD. In fact if he doesn't come every day he… well, things go badly for him.
“My prostate gets inflamed if I don’t ejaculate enough. My prostate gets stimulation from both cocks and creates a lot of seminal fluid. So when I cum it has to be squeezed every few days to get all the excess out otherwise it feels bloated and painful.”
We've got a headache.
How does he go to the bathroom?
"If I do use [a public restroom], I try to use the stall and not a wall urinal.
"There've been times where I've had to use the urinal and because I have one muscle that controls my ps, it lets the stream flow out both my dicks. So unless I pinch off one of them it comes out both and that doesn't feel good. So I have to take both out to pee. Yeah I've gotten stares and even had a few guys at various times go, holy st.
"It's not tricky... I've pee'd from both all my life!"