My girlfriend has a huge pain kink (Patreon)

My girlfriend has a huge pain kink

Today we are answering the following questions from our discord messages: My current girlfriend has a huge pain kink and wants to try some stuff where I hurt her during sex. Any advice on: 1) how to bring up to someone that you want to try more kinky sex. 2) how to satisfy my gf even if I'm not 100% comfortable with it/worried about pushing it too far and actually hurting her. 3) what to do if you are in a long term relationship and are incompatible with your partner in terms of kinks.