Jercy: Falling For Eachother

Jason and Piper were never a thing. The only relationship they ever had was the fake one in the beginning of The Lost Hero. They are good friends, but their relationship is that of a brother and sister.

Before Annabeth went off on her quest to find her mother's statue, she and Percy confessed to each other that neither was still in love with the other. After the whole thing with Percy loosing and regaining his memory, they both realized that when they didn't have each other, life still moved on. They both figured that if what they had was true love, then they wouldn't have been able to even function without the other. And so, they broke off their relationship on friendly terms.

So what happens if Percy Jackson and Jason Grace fall into Tartarus together? (Yes the title of this book is a pun, sue me.) Two single guys. Alone. With no one except each other for company. What will happen?
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Stuff I'm supposed to tell you:
~I don't own the characters, Uncle Rick does.
~Any and all artwork found in this book, including the cover, do not belong to me. The credit for them goes to their creators.
~this is a boyxboy ship, so if you don't like that, leave now
~no homophobic comments allowed, please and thank you.
~I've run out of things to say, so ig we should continue on.