When Pakistani writer Zahra Haider wrote about her pre-marital sexual encounters as a teenager in Islamabad for Vice magazine, social media - as you can imagine - had a lot to say.

Haider, now in her 20s, moved to Canada just before her 19th birthday. She wrote that she had used hotel rooms for her liaisons and that her parents "threw a completely irrational and melodramatic fit" when they found out about them.

Her story has been shared thousands of times and has generated a fierce debate. Some people took exception to her saying that Pakistan had one of the "highest porn-watching populations in the world" and that Pakistanis were "horny and desperate for sex". Others focused on her admission that she had sex with "almost a dozen people" as a teenager in Islamabad.

In an open letter to Haider on Facebook, which itself was shared more than 6,000 times, journalist Ali Moeen Nawazish criticised her for passing "cultural judgements" on Pakistanis. Nawazish told Trending that there was no "evidence to back up (Haider's) assertion that Pakistan is the most porn-watching country in the world or that we are sexually repressed". He added that Haider's experience as one of Pakistan's "elite" is not indicative of that of other Pakistani women.

Some social media users in Pakistan were, however, supportive.

Haider told Trending that she wrote the piece in order to encourage more open discussion of sex.

"For example, I received a message from someone in Pakistan who lost his brother to Aids. He said that his brother clearly felt shame when discussing his sexuality. The man said as his brother didn't understand what was happening to his body, he lost his life."