To be fair, not a single character in the Dune universe is a regular human. They’re the equivalent of those plum-sized GMO strawberries at the grocery store.
Yes, I choose to believe she was rubbing one out with her prehensile clitoral hood.
In a 100 years it will be completely normal to have painless and routine medical transhuman enhancements. I’m getting a variable sized dick just as a courtesy enhancement!
There are no GMO strawberries for sale. There are none currently approved.
Well, they all are, just through the old-school methods of domestication and selective breeding.