rule 34 2023 abs anthro arm fins arm scar balls biceps black body blue body blue scales blue sky boat brother lore brothers lore cetacean claws deltoids dolphin dorsal fin duo elbow fin erection facial scar fin fin scar finger claws fish foreskin frottage gay genitals glistening glistening body gumroad hand on penis head fin leg scar light light beam male malemale mammal marine muscular muscular anthro muscular male muscular thighs navel nipple fetish nipple pinch nipple play notched fin nude oceanic dolphin on boat open mouth orca orland takahirosi patreon pecs penis pinch scales scar sea sex shark sharp teeth sibling lore sky splash standing sunbeam sunlight takahirosi teeth text thick thighs toothed whale triceps url vehicle water watercraft watermark 8461371