Her show is known for pushing the boundaries with its sex scenes.

But Lena Dunham admits that even she was shocked by her character Hanna Horvath's Basic Instinct inspired moment on a recent episode of the show.

The 29-year-old appeared on Late Night With Seth Meyers on Wednesday, where she talked about the scene in which she showed her private parts.

'I didn't go all the way': Lena Dunham defended THAT Basic Instinct inspired Girls scene on Late Night With Seth Meyers on Wednesday

'We saw everything that I had to offer!' she joked. 'It was shocking to me also. The thing is when they told me about it in the writers room, I was like, "C’mon guys, don’t do this to me."

'Then five months later I was sitting there on the set listening to the director say they needed to add an extra key light because they couldn’t see quite clearly enough. I had to have an extra light for my vagina!'

While the scene left viewers stunned, Lena explained why she doesn't consider it the same thing as 'porn'.

'You don’t see what’s inside so I feel like I can continue to proudly campaign for a presidential candidate without getting fired,' she joked, referring to her support of Hillary Clinton.

'It was shocking to me also': The actress insisted that even she was stunned by the scene

In awe: Lena also heaped praise on the Kardashian sisters during the appearance

Lena added: 'Not that I have a problem with people who show what’s inside. I’m just saying that in our conservative nation, I didn’t go all the way.'

During her appearance on the show, Lena also told Seth that she is a massive fan of the Kardashians, though she has a special affection for youngest sister Khloe.

The 29-year-old said: 'Sometimes we’ll Instagram about Khloe like once or twice a day, and people will be like, "Those Kardashians – that’s not what you represent."

'And we’re like, “Well, they’re like awesome entrepreneurs who are all about sisterhood and connection and so, yeah it is."'

'People say that’s not what you represent': Lena said she cannot understand why people do not admire the entrepreneurs

Dynamic duo: She was on the show with Girls producer and Lenny Letter sidekick Jenni Konner

She also said that the family is a 'role model' for the relationship she has with creative partner Jennifer Konner, who she appeared on the show with to celebrate the news they will be launching the publishing imprint Lenny together in 2017.

It is a spin-off from their weekly feminist Lenny Letter, which is funded by the media conglomerate the Hearst Corporation, which also promotes the product across websites of its magazines, such as Cosmopolitan.

Lena was particularly pleased when Khloe tweeted to promote their product. She said: 'We received the only praise from the only source. It meant so much because we both love her app.'

Such a heady commendation was enough to see her sidekick Jennifer exclaim that she is ‘the best Kardashian.’ Lena added: 'That’s not throwing Kardashian shade, for us she’s just the peak.'

Move aside Kim and Kourtney: The ladies said their favourite sister is Khloe, pictured with her siblings in 2013

Power couple: The pair also attended the Hollywood Reporter's 5th Annual 35 Most Powerful People in New York Media event on Wednesday

Lena also explained how she has to draw sketches for the actors on her show Girls to explain what they will be doing in sex scenes.

She said: 'I think it started out because we wrote them into our script and our actors would be like we don’t know what it is.

And when Seth I also have to say that before we put Jenni in the position she said “Is this going to hurt?”

Meanwhile Lena has also hit out at Glamour magazine for including her friend Amy Schumer in a 'plus-size' stars, insisting that such labels should not even exist.

Green goddess: The unconventional beauty looked fabulous in her idiosyncratic ensemble

Scent of a Rose: The fragrant beauties looked thrilled to be posing with semi-casual newsman Charlie

She told People: 'I think fashion should be for women and it should be for all women.

'We did an interview recently on Lenny with Beth Ditto who just launched a line that is technically plus-sized but what she really cares about is just putting women in clothes they can feel good about because so often we've assumed women who aren't size zeros just want to put themselves in a tent.'

But she does not think that her famously friend will be fazed by her very public humiliation.

She said: 'I think Amy's entire thing is trying to sort of like break down barriers and be bold about her own opinions and what I think she was trying to do was stand up for women and say we're not supposed be categorized in this role, we're supposed to just be allowed to exist.'

'Fashion should be for all women': But Lena said slammed Glamour for including her friend Amy Schumer in a list of 'plus size' stars, insisting such labels should not even exist