Encountered this interesting topic on the nofap reddit. Its essentially sex without orgasm, to defeat the Coolidge effect and prevent partners from being bored from their partners in the long run.

When we have sex to orgasm, we are engaging a biological program that shows up all across the animal kingdom that is designed to drive mates apart over time. This is because there are a few competing factors driving our love and mating-- one is to have multiple fertilization attempts; and another is to have sex with multiple different partners. This is because these two factors increase the chances of one's genes making into the next generation, which is all evolution cares about. Because of this, there is a subtle but powerful cost to having sex to orgasm, which includes subtle neurochemical and hormonal shifts, and it gradually changes our perception of our mates for the negative, a process called habituation. The alternative is karezza, which avoid engaging this mating program, and instead engages the attachment program by emphasizing gentle, affectionate sex, without intentionally pursuing orgasm. In the post, I describe the advantages and people's positive results using karezza.

Just wondering if any of you couples do this. And to those that don't, have you started to slowly become bored, sick of your partner sexually?

I'm not an expert on this, and I'm still just doing lots of reading around on this topic.

More links: Link to original post on NoFap reddit, its got more in depth information

https://www.youtube.com/watch?v=AjWd7nlIrK0

What do women say about Karezza

What do men say about Karezza