UPDATED 5.31pm Hundreds of students have gathered outside Parliament protesting about rape culture.

The protest, organised by four Wellington East Girls' College students, was prompted by comments posted on Facebook by male students talking about having sex with drunk or unconscious girls.

One comment said: "if you don't take advantage of a drunk girl, you're not a true WC [Wellington College] boy."

There are just as many boys as there are girls amongst the protestors, and the Parliamentary lawn is a sea of billboards - saying 'No means no' and 'Consent is no joke'.

A large crowd of students gathered outside Parliament chanting "2 4 6 8 stop the violence, stop the rape"

And "no matter what I wear, no matter where I go yes means yes and no means no."

The chants are almost deafening, and organisers are calling for the compulsory teaching of consent in all secondary schools.

Deputy Prime Minister and Minister for Women Paula Bennett addressed the crowd, saying she commended those attending the protest.

"As a politician, but more importantly I think as a mother, grandmother and a daughter, we see you today, we hear you . I want to commend your bravery and your voices for being heard.

"I think it's incredibly powerful that such a large group has turned out," she said.

Video above: Georgia Nelson - Newstalk ZB