oyama mahiro (onii-chan wa oshimai!) drawn by pa_panahana

1girl :d ahoge alternate_costume bare_arms bare_shoulders beach bikini blue_sarong blue_sky blush breasts brown_eyes collarbone commentary cowboy_shot day eyewear_lift floral_print_sarong hair_between_eyes highres long_hair low_twintails nail_polish navel onii-chan_wa_oshimai! open_mouth outdoors oyama_mahiro pa_panahana palm_tree pink_nails purple-tinted_eyewear sand sarong sky small_breasts smile solo stomach string_bikini sunglasses swimsuit tinted_eyewear tree twintails water white-framed_eyewear white_bikini