FicWad

I don't often read smut on here, but when I do, I ONLY DID IT BECAUSE I DIDN'T READ THE DESCRIPTION.

But still, good work.
The thing that bothers me the most about this would be a lack of commas and apostrophes. But then again, you've come at a bad time for that. I am honest to God THIS CLOSE from snapping completely and going into a screaming rage at somebody who uses the wrong your in a sentence.

im. Not im. Never im. IT'S I'M. I AM. ARGARAG. You missed a question mark at the end. So that's really good.
Yes, your grammar is driving me insane. But I'm just one person, and others seem to like it, so my opinion shouldn't matter much. Those who mind don't matter, and those who matter don't mind, right?

Did I read the sex parts? Nope. Why? Don't like the pairing. Does it bother me? Nope. I ship Gerard/Lin-Z. Because I'm a total shipping purist although I've still got Jimmy/Lin-Z because those two are so dang cute together.
Other than that, content-wise, there's nothing wrong with your fic. (You marked it appropriately. I'm just dumb.) The grammar's dragging it down a bit, and your prose is a bit iffy, but that's just nitpicking things, so don't mind.
Is Rambling. Will stop.