Mommys Girl Katrina Kaif and Pinkberry Lesbian Spanking Lessons are not new in lesbian couples circles. These lessons have been around for quite some time and they are very popular among lesbian couples especially those who want to learn how to spank their girlfriends. In fact, there are more than a few couples who use these techniques to get the power back in their hands and with each other. Some of the best parts of the lessons include the "Pink Phone Spanking" and the "Threesome Spanking". The Pink Phone Spanking is probably the most well-known and the most controversial of the two lessons..