Robots would have to become a HELL of a lot more lifelike in 40 years for anyone sane to consider it.
I dunno about you guys, but I'd be affraid to stick my johnson in some cold, potentially dangerous, silicon hole of whirring parts & moving pistons.
Plus a sex conversation similar to that of igod would just kill the moment.
"BEEP BEEP BLIP BEEP YES, YES, GIVE TO ME IT!"