Who Would've Thought

Not my story repost from whoknows on ao3

The idea doesn't come to Louis until they've been at the bungalow for a couple of days. Harry has no idea that he's going to pop a knot. He's been living his life with the expectation that he's going to be a beta, and Louis isn't going to tell him otherwise.

Louis is an omega, though, and most omegas want to be filled up with a knot, fucked the way their bodies are made to be fucked, and Louis is no different. In ten years he wants to have an alpha waiting for him at home who will hold him down and fuck him exactly the way Louis wants to be fucked without worrying that they're going to expect him to stay at home, open a joint bank account, raise a litter of babies, cook and clean and, most importantly, be submissive. For that to happen Louis needs an entirely different kind of alpha.

And so the plan is born.