(Note: Might contain spoilers for Automata for people that didn't play through the first ending.)
Hmm...personally I think they do. If androids are modeled after humans, they might have the same parts. Adam and Eve are probably the exception at most, what with them bring (made?) out of robots mimicking humans. They might not function for the same purpose (procreation/giving birth) but they would be there. Plus why the hell would androids be given chests and ass for days if there was no advantage for having them? There is some implication that androids do get into relationships so they must get something more than emotional benefit out of it. But that is just my thoughts.
"You want to *** 2B, don't you?"