Rule34https://rule34.xxx/index.php?page=atom&tags=2017 aged up anthro anus asriel dreemurr ass backsack balls boss monster caprine diraiko feet fur goat greyscale hair horn kneeling long ears looking at viewer looking back male male only mammal monochrome nude penis penis backwards perineum presenting presenting anus presenting hindquarters smile solo spread legs spreading undertale video games white fur2024-05-07T07:00:42ZRule34