Read the newspapers, especially Times/Guardian online. It's very common for them to run stories about women and sex, divorced women in their 40s/50s/60s in particular, and how these women have enjoyed good sex lives since their divorces or separations. Young women seem to have no problem talking about their active sex lives, and good for them.
Talking about sex is difficult for everyone because sex is (for those who want it) such an elemental and (I would say) primitive desire. I realise the following is a generalisation, however: those who have good, active sex lives tend to feel alive and full of energy; those who want an active sex life and can't have one for whatever reason - well, let's say they feel something's missing in their life and, depending on their personal circumstances, it's either something they'd quite like but don't get, like four weeks' holiday in the Maldives, or it drives them towards depression. I occasionally talk about sex to my (male, like I am) friends, but it's a sensitive topic. Like, I'm an unwilling celibate, so when my friend has a sexual relationship, he may want to tell me about it, but he knows it'll accentuate the lack in my life.
And if you think it's socially unacceptable for women to state they love sex, read the threads on this topic, although I have to say speaking anonymously is not the same as speaking in real life. He says, anonymously.