Rule34.GG

Regular after transformation
anus
backsack
balls
ballsack
big balls
black goo
black penis
blue goo
blue horn
dragon
feral
firondraak
forked tongue
genitals
glowing
glowing eyes
glowing markings
glowing mouth
goo creature
goo transformation
grey background
horn
imaginarydragon
male
markings
membrane (anatomy)
membranous wings
merging
neltruin
penis
perineum
post-transformation
purple precum
purple saliva
red eyes
simple background
solo
tail
takeover
tongue
transformation
white goo
wings