Rule 34 Dev - 1boy abs ai_generated alya_ros biceps black_eyes blush brown_hair flex flexing flexing_arms flexing_bicep flexing_both_biceps flexing_muscles gym kuze_masachika male male_focus male_only muscle muscle_vein muscles muscular muscular_arms muscular_body muscular_male muscular_thighs nipples pose posing roshidere seductive seductive_look shirtless short_hair six_pack solo solo_focus standing stretching sweat sweating sweaty teenager thighs tokidoki_bosotto_russian_de_dereru_tonari_no_alya-san torri1 uncensored veins veiny veiny_abs veiny_biceps veiny_muscles|13079784352