[Akitaku Kikaku (Taku Hiraku)] Nantoka Danshi Vol. 3 Brief Danshi Hen

Two thick-browed school bros turn an underwear rivalry into something far steamier when teasing about trunks versus briefs ends with very hands-on instruction neither expected. A confident spiky-haired stud coaches his buzz-cut buddy through his first trembling release, muscled thighs flexing and briefs dampening as gruff encouragement melts into gasped 'ngh's and 'fwa's. By the time they strut past the infirmary in nothing but tank tops and briefs, proudly declaring themselves Briefs Bros to every snickering classmate, their bromance has been sealed with sweat, stiffness, and something much warmer.