A blank slate would be perfect for breeding!
From Create Your Own Story
You run your hand across your sister's clone. Her arms instinctively wrap over your hand as it runs over her stomach. Your sister definitely has a good looking body.
“We're going to need more people if we want to keep this ship operational and colonize our planet,” you think to yourself, feeling your cock swell at the implications of what you are going to have to do. Space sure is tough!
You sling your real sister over one shoulder and your clone over the other and head off for the berths. The clone squeals with delight at the ride. You let your hands rest on their lower backs and compare the two bodies. They really are identical, right down to the firmness of their skin. That must mean your sister is sporting the same fuzzy brown muff as her clone.
You unceremoniously dump your clone in your room and take your sister to hers.
As you tuck your sister in, she begins to regain consciousness.
“Jane, everything's OK. It seems like the clone is like a blank slate. She is all instinct with no experience or knowledge. I've put her in my room.”
“There are plenty of rooms on the ship. What are you thinking?” Jane says warily.
“Just the two of us are not enough to keep the ship operational forever. We are going to need more people to survive. I don't know why the clone was here but it is an opportunity to keep us alive. I am going to use her to make progeny to help us run the ship.”
“That is disgusting! That is my body! And she has no idea what is going on! This is wrong.”
What do you do?