Rule 34 Dev - 1boy anal anal_sex black_eyes black_hair clenched_teeth dimension_w held_down light-skinned_male low-angle_view mabuchi_kyouma machine machinery male male_only male_penetrated male_penetration muscular muscular_male penis ponytail pubic_hair restrained restraints short_hair solo spiky_hair teeth_showing tentacle_on_male tied|7470669536