Rule34.GG

Regular 3:4
ambiguous species
anthro
arthropod
backsack
balls
balls expansion
balls growth
balls growth (enlargement)
balls pregnancy
ballsack
bodily fluids
brood
egg
egg laying
english text
expansion
felid
feline
foreskin
genital expansion
genital fluids
genital growth
genital growth (enlargement)
genital transformation
genitals
growth
hi res
humanoid genitalia
humanoid penis
infestation
insects
inside balls
internal
male
mammal
merging
monochrome
ovipositor
parasite
penetration
penile
penis
perineum
precum
solo
swollen balls
text
transformation
uncircumcised
uncut