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2015 against_surface against_wall animal_genitalia anthro arm_grab blush bodily_fluids brown_body brown_scales claws duo entwined_tails erection eye_contact forked_tongue frottage genital_fluids genital_slit genitals high-angle_view janus_askr knot looking_at_another male male/male mottled mottled_body mottled_scales multicolored_body multicolored_scales murad muscular nipples nude pecs penile penis penises_touching piebald piebald_body piebald_scales pinned plantigrade plussun precum red_eyes reptile scales scalie sex smile smirk snake spines tail tail_coil tongue tongue_out unsure viper white_body white_scales yellow_body yellow_scales yellow_sclera