Why is this eating at me? Because I'm trying---again---to write a PWP. Not Spuffy. A Wesley/Willow piece for part of my

But I suck. I'm at 3500 words and these two *still* haven't had sex. In fact, what I had thought was going to be a darker story is turning cute. There's a whole dialogue exchange in this that I giggle throughout when I re-read. Not. Good.
I really don't know how other writers do it. I wonder if it's because I'm trying to write a UC instead of a canon relationship. Most of this 3500 words so far is me justifying how a Wesley afore-obsessed with Cordelia and a Willow rebuilding a relationship with Oz could possibly be in *any* kind of position to have sex. Which, to me, seems like the right thing to do. It makes the sex more believable, right? But I suppose believability isn't as important to some people. They just want the hot.
I'm just screwed. I can't slash Wesley for some reason, and his canon relationships bore me to tears. Fred? Too sweet and unrealistic. Lilah? I really don't like *writing* Lilah at all. Illyria is interesting at least, but I'm more terrified of writing her than I was in writing Ethan. So not going to happen any time soon.
*sigh*
Sometimes I really hate going back to the drawing board...