I stopped dead and looked across at Carol, thinking for a terrible moment that she was having second thoughts about seeing me making love to another woman. I felt an argument was coming and I was instantly ready to ask her why it was all right for her but not for me. But that wasn't the case, in fact quite the reverse. She shuffled down the bed until she could see between Zara's legs and then stretched over to take hold of my cock and steer it into Zara's pussy herself. 'I just wanted you both to be sure.' She said. 'That I want you to do this, and I...