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4:3 akuro anthro anthro_on_anthro bad_rap balls bdsm big_penis black_balls black_foreskin black_glans black_penis bondage bound broad_shoulders chrono_eternae dinosaur dragon dromaeosaurid erection extreme_dinosaurs foreskin from_behind_position genital_piercing genitals glans grey_body grey_foreskin grey_penis grey_scales grin grinding group group_sex leg_grab licking male male/male muscular muscular_male mythological_creature mythological_scalie mythology nexus non-mammal_balls oral partially_retracted_foreskin penile penis penis_lick penis_piercing piercing prehistoric_species prince_albert_piercing purple_balls purple_body purple_penis purple_scales reptile retracted_foreskin saurischian scales scalie sex sex_swing size_difference smile spread_legs spreading suspension_bridge_position swing tail teeth_showing theropod threesome tongue tongue_out trio