1boy 1girl age_difference ahoge all_fours bar_censor black_background brown_eyes censored commentary_request completely_nude doggystyle flat_chest grabbing_another's_hair heart heart-shaped_pupils hetero highres loli long_hair looking_at_viewer nipples nude onii-chan_wa_oshimai! open_mouth oyama_mahiro penis pink_hair samneco sex sex_from_behind simple_background solo_focus sweat symbol-shaped_pupils tears translation_request x-ray