Get a Little Rowdy by Jayda Marx

One moment can change the course of someone’s life.

Fifteen years ago, that moment came during a chance meeting between Grayson and Rowdy, and neither of their lives would ever be the same.
During a walk in the woods with his son, Grayson came across a creature he never knew existed; a human boy who changed into a cougar.
The boy was cast aside by his family for exposing his secret identity to humans. He lost everything to protect the strangers.
When he returned home and told others of what he’d seen, Grayson was ridiculed and ran out of town. He lost his job, reputation, and relationships. He spent his life searching for the creature again.
He discovered the creatures again when his son was not only saved by a cougar shifter, but mated with one. Grayson is overjoyed by the pairing, but he is very sick and running out of time. The only thing that will save him is a magical mate of his own.

*This low angst, insta love novella is full of heartwarming scenes, a few laughs, and lots of steam. It has no cliffhangers and a very happy HEA!