Calvin Boxer, a lean and fastidious aspiring swimmer, joins a local powerlifting team to build muscle and endurance during the summer.
He finds himself thrust into a world of heavily muscled, older men, where the air is thick with sweat and musk, and the atmosphere is both intimidating and alluring.
Frank Jones, a massive and charismatic bear of a man, takes Calvin under his wing, dubbing him "Pup" and pushing him to his limits.
As Calvin struggles to adapt to the new environment and the rigorous training, he finds himself drawn to Frank's intense presence and the raw masculinity of the powerlifting team.
The dynamic between Calvin and Frank shifts subtly, with Frank's guidance and encouragement blurring the lines between mentorship and something more intimate.
Calvin's discomfort and initial resistance give way to a growing attraction, leading to a complex exploration of his sexuality and desires.
The story delves into themes of straight-to-gay transformation, undie sniffing, bromance evolving into lovers, and betrayal by a confidant, as Calvin navigates the treacherous waters of his newfound world.