I was wondering how does it affects relationship and the dynamic of couple of people and even outlook of those.

i don't have any but honestly i wouldn't care about the dynamic/relationship.

I mean, in theory it sounds like a great idea but in reality, I reckon it gets super messy

Just still treat them as a friend and not a sexual objective for you to exploit and abuse.

I was thinking it would get messy due to romantic interest but sure, that's a thing too

I mean, that depends if your friend agrees to stay as friend.

I don't think it'll ever be that simple lol

I love the idea of it, but I think reality would be awkward.

I don't even know what would lead to me fucking a friend in the first place.

Has to be 100% the right conditions.

Alchohol is most likely 100% involved :3

The problem is that I don't drink :s

My friend would have to be smashed and I would have to be incredibly horny, which rarely happens.

Fair, an alternative would be someone you had sex with and then became friends after?

Not sure about that. I am still a virgin and I am not exactly looking for the first opportunity to have sex, so that could be difficult, but not entirely out of the picture. :)

Yeah, I'm not exactly looking for a relationship either atm but horny mind go brrr you know~

I've had one. It's fun, but it gets messy eventually. In my case, she caught feelings eventually, and then I caught feelings, but it never happened at the same time.

We're still friends though, just not with benefits.

They can be a lot of fun, if done properly. Proper communication and boundaries can make for lasting memories beyond sex. Mine was very good to me when we were together until I moved away.