This ia about one of the best written giudes to K9 sex that I have read.After I had my first K9 experience i never stopped.I feel for those who have not had one.The Pictures were great.Only missing one (a dog and his bitch rump to rump Knotted.) I am unshaedly a K9Bitch. After my first knotting my life changed. Thanks for your input.I have printed it for newbies who are ready for K9 Loving.