6+boys, beach_umbrella, black_hair, blurry, blurry_background, bottle, censored, cowgirl_position, drinking, erection, hair_over_one_eye, hat, heart, heart_censor, male_focus, multiple_boys, navel, nipples, nude, otoko_no_ko, penis, sex, shade, stomach, straddling, straw_hat, sweat, tan, tanlines, umbrella, water_bottle, yaoi