Rule34.GG

Regular 1boy
1girls
2d
after anal
after penetration
after sex
anus
armor
beige skin
black hair
blue eyes
blue skin
blush
breasts
brown hair
buggery
closed mouth
color
crossover
cum
erection
eyewear
female
freakazoid
freakazoid!
frown
glasses
gordon freeman
green eyes
hair
half-life
half-life (series)
hev suit
human
kneeling
kristal
lambda symbol
looking at viewer
lying
male
nipples
nude
on back
open eyes
penis
pussy
round ears
rule 63
sex
short hair
smile
straight
vagina
vulva