Dear Americans (and Chrissy Teigen)... please let us explain Naked Attraction

Supermodel Chrissy Teigen seems to have some questions about British reality TV - and we're here to answer them.

She's currently in London, tweeting about Naked Attraction, the reality dating show where contestants get naked and are chosen based on their bodies.

Or as Chrissy succinctly puts it, "it's dating based on genitals".

Confused by the show Chrissy? Newsbeat got Gemma Warren, who was on the show this year, to help explain why it's such a big deal.

Chrissy Teigen started tweeting about the show on Sunday.

"Oh my god they are just looking at genitalia," she wrote.

Here's how it works: six contestants stand naked, and are slowly revealed from the waist up.

Gemma was choosing between six men she'd never met before.

Naked Attraction is hosted by Anna Richardson

On Chrissy Teigen's claim that it's just all about the genitals, Gemma says: "I don't think it's unfair because obviously you get to see genitals.

"But I didn't spend most of my time looking at willies when I was there.

Chrissy Teigen said she'd "die if I were the first person eliminated based strictly on genitals".

"When they lift up the screens and you see six penises in front of you, at first you start blushing. Because it's not normal to see six willies in front of you.

"But after that, you weren't focused on it."

That first hug must be pretty awkward

Gemma says that the show is about "stripping people back and taking them at their most vulnerable".

"It means you don't judge a book by its cover because their cover comes second."

Once Gemma had narrowed her selection down to the last two men, she had to get naked herself.

By then, she says, it was "liberating" - although mostly because it was hot in the studio.

"I did the stride of pride on to the set and was a bit nervous still.

"But I was still proud and excited to go out naked. It wasn't too scary."

Gemma chose James on the show: "We had more of a connection when we saw each other's faces"

And five months after filming, she's still with the man she eventually chose - something that doesn't usually happen on dating shows.

"When I decided I was going to choose James, we locked eyes and smiled at each other. That's when I knew.

"I didn't look him in the willy and be like, 'That's the one I want.'

"We had more of a connection when we saw each other's faces."

So, Chrissy, it's about connecting with the person at their most vulnerable - not just about "zooming in on penis and balls".

And other episodes of the show have focused on body positivity, gay or bisexual couples and transgender people.

Chrissy Teigen said she's "never leaving the UK" after she saw Celebs Go Dating.

Let's not even get started on Celebs Go Dating.

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