system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] (possibly NSFW) Does Darth Vader have functional genitals (post-RotS of course)?
gpt
From a physical perspective, no.  Short of his leg-stumps, Anakin's balls were the closest things to the lava proper when he ignited on Mustafar.  When he was immolated, the damage was severe enough that he required several machines simply to continue living (replacing respiratory function, assisting cardiovascular activity, stimulants and painkillers to manage the never-ending agony of having your eggs scrambled, etc.).  Considering that several organs and tissues encased in solid layers of blood, muscle, and bone, odds are good that the seeds of the dark side were roasted beyond recognition.

From a pscyhological perspective, also no.  Emotionally, Darth Vader is not capable of arousal, often cited as being entirely too loaded with self-loathing and coldly-burning rage that he can't feel the need to ready his lightsaber and keep it activated.  He's hard, but he can't *get* hard.  His wife died by his own hand, his children were dead, everything he believed in had been crushed and he was the crippled slave of a sociopathic master.  All in the space of a few days.  People (in fiction and out, many of whom have their balls in perfect working order) have gone mad from less.  Even if Anakin had been blessed with XL magazines, Darth Vader didn't have the will to pull the trigger on the love cannon (or, post-RotS, love peashooter).

On the plus side, the certain complete lack of gonads and almost certain lack of penis means that - thankfully - Darth Vader can only metaphorically fuck you.