4 - A love scene.
Love scenes.
Oh wow.
So, love scenes can make or break a story. I don't know if I've really ever written one that I like. LOL.
They're something that you want to come away from feeling like 'wow' and even though you're not participating, you want something to come from it for you personally. Some do that really well and some don't. I think it's a personal preference deal. Either you like them or you don't and no two love scenes are the same.