hello bambina i know what you are going through as it has happened to me many years ago the only thing that i can suggest is to relax for a hour before having sex by your Dom or to have a relaxing bath or the alternative is to buy your self a butt plug or a vibrator but the smallest one not the biggest one and try to put it in yourself with loads of k y jelly yes you will bleed a bit but the bleeding should stop in a couple of days good luck and i wish you luck and enjoy from slavenaomi57