It's okay googley, I also fill the same role as you and am not really sure how to "catch up". Could you ask yourself why you want to catch up and maybe that will help you find something? Do you just want to catch up because you feel you're 27 and "should" know. Or is it because you're ready for sex? Or is it just because you're curious?

I understand on not wanting a text book, or a teenage book. I feel like they lack important parts, like how to be intimate. They don't necessarily give you like a step by step, controlled process of the experience either. Well first this will happen and then you do this. I'm not sure those kind exist... because I'm not sure it's always uniform? Maybe? But I would also like a manual... because otherwise it makes me nervous to think about.