Sure straight up fucking can be fun, especially since it saves time. But sometimes it's fun to do the dance, a bit of foreplay and teasing, talking and playing a character even if both of you know what you really want. Like flirting a little while drinking at a tavern. Or, something I specifically like, having my male worgen character wear nothing but a coat, show off his strong body while doing some mundane task and almost daring the other person to show some interest and arousal, acting casual even as his length grows from his sheath. Horny brain would throw a discord at you, but I know myself well enough I probably wouldn't commit. One can always imagine.
Never feel bad about being (relatively) vanilla. I only have a few weirder fetishes and most of them I've never even tried working into an ERP. Vanilla is fun in of itself, I'll never get tired of it and I'd subtract whatever things make my partner uncomfortable - say, worgen dick doesn't have to be animal, human makes sense. And elves (though I prefer the night flavor) and draenei are hot.