Sex with a close friend

So this started years ago, we were close friends who started having sex, attraction was deep and it was imposible not to develop feelings, life took us both different ways, I had relationships and he did too. I’m recently single and he moved back to the city, and as soon as we saw each other again, we picked up from where we left of.

We are again, having amazing sex. And I don’t want to get attached but I also don’t want to end it just now, I want to be able to keep it cool for a while and see if this time we can try something but of course it can’t be right away, I want to see what happens, in a more natural way.

He is a great guy and loves me, we are super close friends and I know he would do anything I want (continue with sex and being friends, stop sex and just be friends, etc)

I’m not really sure if I should stop, talk to him or just continue to play the field and see what happens.

What would you do?