For many girls in the Pacific, talking about menstruation, sex and childbirth is so taboo that their mothers are not the ones to explain it to them.

But understanding sex is vital for so many reasons.

If you don't know about sex, you can't know about sexually transmitted infections and unwanted pregnancies.

So how can we encourage people to have more open conversations about sex?

This week on Sistas Let's Talk, Natasha Meten speaks to Rachael Tommbe from the Meri Lida Project, a program that trains women in peri-urban communities to talk about sexual reproductive health, so that they can share this vital information with their peers in rural villages.

She also speaks to Youth Nursing Officer Primrose Famane about why women should seek help if they experience painful sex.