Arms Hauled Overhead - Tongues And Fingers On Their Bare Armpits (Anime Bara)

Muscle-bound anime hunks sign up for an armpit tickling game and get exactly what they agreed to - arms hauled up overhead, pits wide open, while other muscular studs lick and tickle them relentlessly. Cuffs, ropes, chains and X-crosses across workshops, locker rooms, gyms and observatories - every one of them a willing volunteer who set the terms himself, straining against the straps and laughing until he can barely breathe. 2D animated - no real people.