Rule34.GG

Regular 4 fingers
anthro
aquatic gastropod
balls
bandana
barbel (anatomy)
big penis
biped
bodily fluids
catfish
claws
clothing
comic
duo
erection
erection under clothing
fingers
fish
furry only
gastropod
genital fluids
genitals
glans
gloves
hand on shoulder
handwear
hi res
humanoid genitalia
humanoid penis
inside
larger male
looking at penis
male
male/male
marine
mollusk
monochrome
mostly nude
navel
nipples
penile spines
penis
precum
sea slug
size difference
slug
slugsdog
smaller male
smile
standing
sweat
sweatdrop
underwear only
undressing
vein
veiny penis