k-on!
hirasawa ui, hirasawa yui
yuuki akira
2girls, blush, breasts, brown eyes, brown hair, clothed female nude female, completely nude, don't say "lazy", dress, elbow gloves, gloves, hair ornament, hair ribbon, human guitar, implied fingering, incest, medium breasts, multiple girls, musical note, navel, nipples, nude, ponytail, ribbon, short hair, siblings, sisters, spoken sweatdrop, sweatdrop, unconventional guitar, yuri
commentary request