I stood up and placed a hand on Rei's shoulder.<strong>"You were born with a fallow womb, stripped of the ability to create, so that you could participate in the instrumentality of man." </strong>I told her, withdrawing my hand.  In reality, she was infertile because Ritsuko considered sex a distraction.  Or at least she had, once.  That poor girl had almost no sex drive, and she passed the flaw on to Rei.<strong>"Do not fear having any seed planted within you." </strong>I said, knowing that she could work out the part about having a poisonous body that ruined everything that entered it for herself.<br/><br/>An idle thought occurred to me, and my blood chilled in my veins.  If Ritsuko could remove Rei's sex drive, could she also increase it?  The idea made me angry.  Would it damage her usefulness?  Was Ritsuko already applying such modifications to the next batch of clones?<strong>"If this project requires you to undergo permanent changes, modifications to the way you feel and act, would you accept such a thing?"</strong>I asked, my voice subtly suggesting that I disapproved.