Chapter Text
Harry and Louis broke up ages ago-sixteen years and six months if anybody's asking. Their whirlwind summer romance resulted in a lifetime commitment neither one of them would have ever seen coming in their wildest dream: co-parenting their seventeen-year-old son, Owen. Despite the mayhem of it all, somehow they managed to raise a good, well-rounded kid. Sure, there were a couple of moments-okay, four they could have gotten together over the years, but that was just biology, no feelings involved… obviously.
When it was a relationship, it was passionate adventurous, and wild but not exactly pretty. They burned bright and hot and shared that glamorous, intoxicating summer that seemed to never be anything more than a dream. But then Owen was born, and with him, a healthy dose of reality. The trials of early parenthood dragged out emotions and anger neither one of them knew how to handle. And by the time Owen had turned one, their love story was over at least in the romantic sense.
Now in their forties, they've settled into their separate lives. Harry has had his share of relationships, and Louis is happily dating Ethan—a good-looking, wide-eyed, suspiciously familiar 22-year-old who bears more than a passing resemblance to Harry two decades ago. (A fact Harry finds endlessly amusing.) Everything is fine, predictable, and blissfully uncomplicated… until it isn't.
Because five months ago, after Niall's fifteen-year anniversary dinner—and right before Louis started seeing Ethan—he and Harry had one of their "moments" again. It was a one-time thing, just an old habit, something neither of them thought too hard about afterward. Harry certainly didn't, having long since stopped worrying about unprotected sex since he entered his forties.
Now, with Louis settled into his relationship and Harry feeling progressively sicker, Owen's concerned, Louis is suspicious, and Harry—well, Harry thinks it's just the stomach flu.
Spoiler: it's not.
Two exes with a history of passion, drama, and a seriously questionable track record of good decisions are now expecting another baby together at forty-one and forty-four.
Co-parenting was one thing. Co-parenting again with a brand new baby, a teenage son, and an age-gap boyfriend in the mix? That's something else entirely.
What could possibly go wrong?
