"Scream!" one called out.
"Bite!" another suggested.
"Scratch really hard with your nails!" a third said.
Sex education is common in Western schools but these ground-breaking lessons are taking place in deeply conservative rural Pakistan, a Muslim nation of 180 million people.
Almost nowhere in Pakistan offers any kind of organised sex education. In some places it has been banned.
But teachers operating in the village of Johi in poverty-stricken Sindh province say most families there support their sex education project.
Around 700 girls are enrolled in eight local schools run by the Village Shadabad Organisation. Their sex education lessons - starting at age eight - cover changes in their bodies, what their rights are and how to protect themselves.
"We cannot close our eyes," said Akbar Lashari, head of the organisation. "It's a topic people don't want to talk about but it's fact of our life."
Facts of life
Lashari said most of the girls in the villages used to hit puberty without realising they will begin to menstruate or they got married without understanding the mechanics of sex.
The lessons even teach the girls about marital rape - a revolutionary idea in the country, where forcing a spouse to have sex is not a crime.
"We tell them their husband can't have sex with them if they are not willing," Lashari said.
The lessons are an addition to regular classes and parents are told before they enroll their daughters. None has objected and the school has faced no opposition, Lashari said.
The eight schools received sponsorship from BHP Billiton, an Australian company that operates a nearby gas plant, but Lashari says sex education was the villagers' own idea.
Teacher Sarah Baloch, whose yellow shalwar khameez brightens up the dusty school yard, said she hoped to help girls understand what growing up meant.
"When girls start menstruating they think it is shameful and don't tell their parents and think they have fallen sick," she said.
Baloch teaches at a tiny school of three brick classrooms. A fourth class is held outside because there are so many girls.
Three girls cram into each seat made for two, listening attentively to Baloch. One flashcard shows a girl stopping an old man from touching her leg. Other cards encourage girls to tell their parents or friends if someone is stalking them.
The girls are shy but the lessons have sunk in.
"My body is only mine and only I have the rights on it. If someone touches my private parts I'll bite or slap him in the face," said 10-year-old Uzma Panhwar defiantly as she blushed.
The lessons also cover marriage.
"Our teacher has told us everything that we'll have to do when we get married. Now we've learned what we should do and what not," said Sajida Baloch, 16, staring at the ground.
Ahead of its time?
Some of Pakistan's most prominent schools, including the prestigious Beaconhouse School System, have been considering the type of sex education practised in Johi.
"Girls feel shy to talk to their parents about sex," said Roohi Haq, director of studies at Beaconhouse.
There is definitely demand. Lahore-based Arshad Javed has written three books on sex education and said he sells about 7,000 per year. None are sold to schools.
But not everyone agrees with the lessons, partly because young people were not supposed to have sex before adulthood. Recently the government forced the elite Lahore Grammar School to remove all sex education from its curriculum.
"It is against our constitution and religion," said Mirza Kashif Ali, president of the All Pakistan Private Schools Federation, which says it represents more than 152,000 institutions across the country.
"What's the point of knowing about a thing you're not supposed to do? It should not be allowed at school level."
In neighbouring India, many government schools formally offer sex education but Pakistani government schools have no such plans. Nisar Ahmed Khuhro, the education minister for Sindh, was shocked to hear of the lessons.
"Sex education for girls? How can they do that? That is not part of our curriculum, whether public or private," he said.
But Tahir Ashrafi, who heads an alliance of moderate clerics called the Pakistan Ulema Council, said such lessons were permissible under Islamic law as long as they were segregated and confined to theory.
"If the teachers are female, they can give such information to girls in the limits of Sharia," he said.
COMMENTS (12)
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Nobody perverts sex as much as so called pious Muslims do. There is nothing disgusting or vulgar about a very natural part of human life. And since when is teaching biology/birds and bees before marriage against Islam???? Why do people insist on making up nonsense and calling it religion. Ridiculous. I fully support educating young boys and girls about their own bodies and as they get a little bit older, about bodies of the opposite sex. It's an integral part of the human race and needs to be taught. This points to teaching from a biological stand point, not the Kama Sutra to those having a fit.
And to the person who asked if marital rape is real..... YES, it is VERY real. Rape is very much so possible within a marriage. A marriage license is not a hall pass for a man to force his wife to have sex with him. Or vice versa. I don't understand what's so hard to understand about that.
I support this! Some good progress!
So unfortunate that these Pakistanis love everything that is Western. Once someone told me he was so glad Westerners don't eat their feces, if they would Pakistanis would follow soon because they would expect it to be something healthy because otherwise they wouldn't do it in the West.
Rape within Marriage? Is that what Islam teaches us, does this exist?
Sex education and making little children think about their bodies in this context is the source of a lot of sorrow in the west.... But yeah if they start eating their feces...
fully confusing article.This way /type of education is not permissible by our culture and religion. education on prevention from rape / is totally differ. Ministry of education needs to take lead for the Scanning of material and organization.what they actually want from our people. they have to work on free education system.
like, count the number of times the word "sex" is used in this article.
About time ....