Rule34.GG

Regular 2boys
3 fingers
alien
alien (franchise)
alien penis
ambiguous gender
anthro
character request
colored cum
crossover
cum
cum inside
drooling
egg implantation
egg laying
hands behind back
laboratory
laboratory equipment
male
male only
male xenomorph
mass effect
no nipples
oviposition
penis
salarian
saliva
snakehead404
stomach bulge
xenomorph