He grinned, before gently pulling the newest tail around, one that looked almost like a semi-transparent illusion, around for her to see. "While molesting you, I put the energy field into you. The gradually gained tail doesn't need you to match to it, it matches to you. That is why it takes a week or so to complete, but you have no discomfort. Just a feeling of steadily growing power. You don't have to do anything, or in fact even feel it. Good for a surprise gift."<br/><br/>He snuggled against her, before sighing in pleasure, his hands rubbing her thighs. "So, any plans for today, or can I persuade you hang around for a while?"