The very grown-up guide to female anatomy – with a sewer pipe

Conan had a sex expert on his show last night to help him with female anatomy. It was brilliant.

So, in a Valentine's-themed segment on last night's Conan O'Brien show, the red-haired humorist invited Dr Jennifer Berman, sex expert on to the show.

And she decided to show him how to find the female G-Spot, with visual aids.

It's hilarious. It's also probably not safe for work, in that you shouldn't play it with the speakers on.

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Dr Berman is, of course, a real doctor - she's a female urology expert and an enthusiast in the area of sexual health and libido.

And has absolutely no qualms about sharing her knowledge on national American TV, where they tend to be a bit squeamish about these things.