Rule 34 Dev - animal_ears bara big_pecs black_hair blush collar colored_sketch cowbell ear_tag glasses half-closed_eyes hayami_masaki heart heart-shaped_pupils kemonomimi kengan_(series) kengan_ashura kengan_omega kuso_chihuahua male male_only muscular muscular_male pecs small_breasts solo spiky_hair sweat topless topless_male upper_body|7905415944