Rule 34 Dev - 2018 abs anal anthro anus arno ass backsack balls beach biceps black_skin blue_eyes brothers brown_fur brown_hair celio cetacean chapter_3 clothed clothing comic detailed_background dialogue english_text erection feline fur group group_sex hair humanoid_penis incest male mammal marine multicolored_fur multicolored_skin muscular muscular_male night oral orca outside page_39 page_number pecs penis peritian raised_tail saliva seaside sex siamese sibling size_difference tan_fur text threesome twins two_tone_fur two_tone_skin vein whale white_skin yaoi|3155821528