Kurt has a son with some guy who he's not with anymore. He moved back home with Carole and Burt. He works for Blaine who is a vet. I belive and Rachel works there and she has some sort of anger towards Kurt for some reason. Finn and Quinn were married with a daughter but Finn and Rachel were having an affair. I remember one chapter Finn was watching Kurt's son and he spanked him and Kurt was pissed.
Blaine and Sebastian were best friends and he and Kurt got along fine.
Kurt's son reffered to Blaine as "Stitch" in later chapters because they watched the movie together when Blaine was watching him.
Oh and Sebastian was dating Kurt's ex in later chapters as well becuase the ex wanted to find Kurt and his son.
This was such a great story and I would love to read it again. If you know what I'm talking about please let me know.