Exos can't for sure
They were humans that sacrificed all the draw backs of being human, for the price of not being able to procreate
Apparently they can still do it tho, ana bray said something about it being redundant in the grimoir
Redundant, not impossible
English
-
Exos can eat, drink, and have sex. It is to further prevent DER(Dissociative Exomind Rejection) much like rebooting an exo. Which is tied to their number