Tiny Optimus being inside the Megatron valve. Blitzwing fucks Megatron with Optimus inside.

I read a fic where play with a small size of Optimus happily trying to fragment Megatron from DEEP inside. ♡
Blitzwing is here but only his spike.
#valveplug #valvevore #unbirthsex #unbirth #sizediference (heavy) (Iguess) #megop #sketch #nsfw #Inappropriateuseofoptimus