Rule34.GG

Regular anthro
anus
balls
bed
bed sheet
bedding
blush
common hippopotamus
embarrassed
erection
floppy ears
grabbing sheets
half-closed eyes
hippopotamid
hippopotamus
holding tail
inside
long tail
looking at viewer
male
male only
mammal
moomin
moomintroll
nervous
nude
obese
open mouth
overweight
overweight male
penis
semi-anthro
shy
solo
spread legs
spreading
tail grab
tapering penis
the moomins
tsurugi