FURVERT!

air_bubble animal_genitalia animal_penis aquatic bdsm blue_background bondage bottlenose_dolphin bound bubble cetacean cetacean_genitalia cetacean_penis dolphin dorsal_fin dragocorn erection eyes_closed feral fin genitals male mammal oceanic_dolphin open_mouth penis restrained simple_background solo straps tapering_penis toothed_whale underwater water