I had to share a vote for my wife. She didn't get a choice when her anal virginity was taken. It was fairly early on in our sharing lifestyle. my wife had mad all the arrangements for us to meet a friend in a hotel near by. As a tease I was tied up and could only watch as the fondles and teased each other. He had used several toys on her so he had oiled her up really well. He then rolled her on her knees facing me. He got behind her and stroked his cock from behind. He teased her and made her beg for his cock. as she begged, he grabbed her hips and pulled her back quick and forceful. She tried to scream, be she couldn't make a sound. You could see some pain on her face, but as he pounded harder and harder it gave way to pleasure.
To this day she hates anal if she is asked, but if it's just taken, she loves it.