PORN star Stormy Daniels is set to unleash chaos next month when she releases her book in which she penis-shames American president Donald Trump.

Stormy claims to have had an affair with Donald in 2006.

According to The Guardian, in her book Full Disclosure (due to be released on 2 October) she describes Trump’s penis as “smaller than average” but “not freakishly small”.

She writes: “He knows he has an unusual penis. It has a huge mushroom head. Like a toadstool …

“I lay there, annoyed that I was getting fucked by a guy with Yeti pubes and a dick like the mushroom character in Mario Kart ...

“It may have been the least impressive sex I’d ever had, but clearly, he didn’t share that opinion.”

So now we know: Donald has a mushroom-shaped 4-5. Read on to find out which shape best describes your 4-5.

1. The banana

These 4-5s naturally curve downwards, even when erect. They are usually also a bit longer than average.

2. The mushroom

Yup, this is the shape of 4-5 that Donald has (according to Stormy). The shaft of these kinds of 4-5s is short and the head is shaped like the top of a mushroom.

3. The ‘C’ shaped

Like the banana, these 4-5s are also curved, usually to the right hand side.

4. The hammerhead

A bit like the mushroom-shaped 4-5s, these 4-5s have a slightly thinner shaft and a thick head.

5. The pencil

This kind of 4-5 is, as you’d imagine, long, straight and thin.

6. The cucumber

These 4-5s are small, thick and wide. The tip tends to be slightly smaller than the rest of the 4-5, making it look like a cucumber.

These names and definitions are courtesy of the online magazine, The Hook.