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non human machine on bottom

2_antennae 4_fingers ambiguous_gender ambiguous_non-humanoid_machine ambiguous_penetrated ambiguous_penetration antennae_(anatomy) balls_deep belly black_antennae bodily_fluids dominant dominant_human duo erection faceless_character faceless_male facial_markings fingers first_person_view genitals glans glistening glistening_body grey_background grey_body grey_face grey_markings head_markings high-angle_view holding_partner human_on_top human_penetrating human_penetrating_non-humanoid_machine humanoid_genitalia humanoid_hands humanoid_penis larger_human larger_male light looking_away machine male male/ambiguous male_penetrating male_penetrating_ambiguous male_pov markings metallic_body motion_lines multicolored_body multicolored_face multiple_positions navel non-human_machine_on_bottom non-human_machine_penetrated non-humanoid_machine not_furry orange_body orange_face orange_markings penetration penis penis_base pink_arms pink_belly pink_body pink_fingers pink_glans pink_hands pink_legs pink_penis pink_skin red_light sex simple_background size_difference slim_human slim_male smaller_ambiguous smaller_non-humanoid_machine smaller_penetrated standing standing_sex submissive_non-human_machine surprise sweat sweatdrop three-quarter_view toony white_body white_face mark_m star_wars bb-8 astromech_droid ball_robot bb-series_astromech_droid human mammal robot 2015 colored digital_drawing_(artwork) digital_media_(artwork) shaded
2_antennae 4_fingers ambiguous_gender ambiguous_non-humanoid_machine ambiguous_penetrated ambiguous_penetration antennae_(anatomy) balls_deep belly black_antennae bodily_fluids dominant dominant_human duo erection faceless_character faceless_male facial_markings fingers first_person_view genitals glans glistening glistening_body grey_background grey_body grey_face grey_markings head_markings high-angle_view holding_partner human_on_top human_penetrating human_penetrating_non-humanoid_machine humanoid_genitalia humanoid_hands humanoid_penis larger_human larger_male light looking_away machine male male/ambiguous male_penetrating male_penetrating_ambiguous male_pov markings metallic_body motion_lines multicolored_body multicolored_face multiple_positions navel non-human_machine_on_bottom non-human_machine_penetrated non-humanoid_machine not_furry orange_body orange_face orange_markings penetration penis penis_base pink_arms pink_belly pink_body pink_fingers pink_glans pink_hands pink_legs pink_penis pink_skin red_light sex simple_background size_difference slim_human slim_male smaller_ambiguous smaller_non-humanoid_machine smaller_penetrated standing standing_sex submissive_non-human_machine surprise sweat sweatdrop three-quarter_view toony white_body white_face mark_m star_wars bb-8 astromech_droid ball_robot bb-series_astromech_droid human mammal robot 2015 colored digital_drawing_(artwork) digital_media_(artwork) shaded