There is this movie called IN TIME. Where people have timer in their wrist and it tells how long they have left to live and that time can be transferred to people and used a currency.

But in a similar world where sex is the currency of life. U need to cum to nourish ur life and others. People don't agree after a certain age. So all look young and busty.

Women can give energy through their tits and pussy. Let's say a man fucks a woman in the pussy she's giving transferring her energy to him. But if a man is fucking a woman in her Butt he is transferring his energy to the woman. It also works orally. Man cums into a woman's mouth she gains energy and you eat a woman out and she cums and u eat or you gain energy.

Your mom blows ur father'cock to get the energy she needs. And you suck her tits to get a flavoured milk that gives u energy for uni.

You are at the cashier and don't have enough change, u decide to spend some energy to the cashier. She sucks ur dick to get the payment. Oops there's another gentleman who wants to get his stuff. He goes behind to fuck the girl in the ass to pay for his stuff.

You are at uni and u feel down after lunch cause u spent too much energy on the cashier cause she's good at it.

So the professor calls u to recharge u from her pussy. She lifts her skirt up and u pull ur dick out and u fuck her to make her cum that energizes u. Oh there are other students aswell no worries they can suck her boobies to get the energy.

Every person has a different amount of reserve for energy in them the professor has a lot since she serves the nation to bring up the future. But basically it all depends on how much u fuck and suck. The more you do the more and more your reserve increase in your life being able to hold more energy.

Guess how the police punishes here? Yup u got it.

The life goes around with people cumming to the fullest.

PS. We can work on the logic and introduce more ideas into this. Incest will be a norm but everyone starts from young adult. I am open for suggestions and improvements so hit me up. If I find multiple good players we could merge storylines and make things more interesting. A few more intricate details will be discussed in chat to clear any confusions.

This is just a gist but we can get descriptive aswell to add more elements to this world.