[Mitsuwa Building (Terujirou)] Chikan Densha (Otoko Matsuri Vol 13)

A pair of brawny college students, the towering, dark-haired 2nd-year Gou Hachisuka and the smooth-talking 2nd-year Kohei Haruna, reunite for a sweaty workout that quickly stirs up memories of a past misadventure. When Gou finds himself rock-hard and far too aroused to take the usual train ride home, Kohei steps in with a teasing promise: a private ride of his own, even if it gets a little rough. Before Gou can protest, he's whisked away, stripped down, and bound tight, his massive, twitching cock the only thing he can beg Kohei to be gentle with. Kohei, who has never taken a load in his life, confesses he's been craving Gou since their last encounter and is determined to milk him for every drop he can get. With Gou reduced to a trembling, whimpering mess and Kohei grinning through the rough treatment, the scene erupts into a hard, desperate rut as Gou loses his load all over Kohei's eager face. Whether Gou ever makes his train home becomes secondary to the new, addictive "ride" he's found in Kohei's hands.