rule 34 2boys blushing drooling error sans fan character frottage gay heki artist humanoid humanoid genitalia humanoid penis in heat ink sans fan character looking at partner looking at penis paint paintbrush pleasure face pleasured pleasured face skeleton string sweat sweating touching penis undertale undertale au undertale fanfiction 4952871
Rule34
imageboard
2boys
blushing
drooling
error sans (fan character)
frottage
gay
heki (artist)
humanoid
humanoid genitalia
humanoid penis
in heat
ink sans (fan character)
looking at partner
looking at penis
paint
paintbrush
pleasure face
pleasured
pleasured face
skeleton
string
sweat
sweating
touching penis
undertale
undertale au
undertale fanfiction