k-on!
kotobuki tsumugi, tainaka ritsu
inoue yoshihisa
2girls, :d, arms behind back, ass, bdsm, blush, bondage, bound, breast bondage, breasts, buruma, cameltoe, comic, covered nipples, crotch rope, greyscale, gym uniform, hairband, large breasts, long hair, monochrome, multiple girls, open mouth, ponytail, rope, shibari, smile, thick eyebrows, trembling
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