Rule34.GG

Regular 1boy
1other
ambiguous gender
balls
ballsack
erection
full-face helmet
gravemind
halo (game)
halo (series)
human
male
male focus
male human
male spartan (halo)
master chief
no artist signature
no source
penis
rape
scrotum
smooth penis
spartan (halo)
spartan ii (halo)
tentacle
tentacle monster
tentacle on male
testicles
torn clothes