rule 34 2021 4 toes anthro avian balls bassybefuddle beak berdly bird bird feet blue balls blue penis blush breath classroom claws close up clothing deltarune discarded clothing erection eyewear eyewear only feather hands feathers feet front view genitals glans glasses glasses only grey claws hi res humanoid genitalia humanoid penis looking pleasured male motion lines nipple fetish nipple pinch nipple play nipples non mammal nipples nude open mouth penis pinch pink glans pink nipples school shirt smile solo sparkles standing talons toe claws toes topwear undertale series video games yellow beak young 5406263