4:5animal_genitaliaanimal_penisanthroanthro_on_feralaquaticayelet_ripleybent_armbent_legsbestialityblue_eyesbreastscetaceancetacean_genitaliacetacean_penisdasyuromorphdolphindolphinamdduoerectionextended_armfemaleferalgenitalshandjobhead_out_of_waterinterspecieslyinglying_in_watermalemale/femalemammalmarsupialmasturbationnipplesnudeoceanic_dolphinon_backpartially_submergedpenilepenisplanksplanted_legspouch_(anatomy)recently_extinct_speciesserpy_thylacinussexsubmerged_tailtailtail_in_watertail_on_groundtail_out_of_watertapering_penisthylacinetoothed_whalewaterwood