Rule34.GG

Regular 1boy
black sclera
bright pupils
cropped
facial hair
foreskin
gem
gem (species)
glowing horns
glowing spikes
hairy
hairy chest
human
hybrid
kaiju
looking at self
male
male only
mid-transformation
monster
monster steven
nails
nipples
penis
pink hair
pink skin
purple nails
purple nipples
solo
spiked tail
steven quartz universe
steven universe
steven universe future
transformation
uncircumcised
veiny penis
wolfbear303