Rule 34 Dev - 2016 animal_genitalia animal_penis anthro cetacean cetacean_genitalia cetacean_penis clothing detailed_background dolphin erection genital_slit genitals grey_body hi_res male male_only mammal marine oceanic_dolphin orca ozi-rz penis pool slit solo swimming_trunks swimwear tapering_penis toothed_whale underwater water yellow_eyes|9372081672