Rule 34 Dev - blush ejaculation genitals graduation_cap graduation_robe male masturbation multi_leg multi_limb penis solo tentacle_masturbation tentacles shrineart assassination_classroom koro-sensei alien animal_humanoid cephalopod cephalopod_humanoid humanoid marine marine_humanoid mollusk mollusk_humanoid octopus_humanoid 1:1 hi_res|20024680550