rule 34 anthro ass avian balls bathroom beak belly big belly big butt bird canid canine corvid corvus genus crow dialogue duo english text erection fart fart cloud fart fetish feathers feces filth filthy fox fur gay genitals hi res hindpaw humanoid genitalia invalid tag male malemale mammal nude obese onomatopoeia open mouth oscine oversheep overweight overweight anthro passerine paws penis pooping on another pooping on floor public public restroom red fox restroom stall scat size difference slightly chubby sound effects text toilet yaoi 4748333