Primal Playtime - The New Personal Trainer (Full Story) (Patreon)

Immerse yourself in the enchanting narrative of "Primal Playtime - A New Personal Trainer" where the ingenious Professor Blitz has nurtured an extraordinary secret. Within the walls of his home, he has been quietly mentoring a caveman (Rock), bridging the chasm between eras. As fate would have it, The Professor's grandson Finn and his girlfriend Lisa seek refuge at his house due to apartment renovations.
Only Finn is privy to the astonishing truth about Rock's existence.

However, a simple mistake unravels the delicate balance when Rock ventures out unattended and discovers a local gym—the gym Lisa goes to...