The Only Way I Can Cum
I can only cum when thinking about nonconsensual sex, more specifically, my gf acting like a w****, then getting raped and humiliated by other dudes, usually people we both know. When we're having sex, oral sex, or anything else that leads to getting off, and she says something or does something lovey that I've got to respond to it brings me out of my fantasy and turns me off, but I fake interest, say or do the part expected of me, then get back to my fantasy when she gets distracted again. Anything going on that doesn't require my immediate attention doesn't even register with my brain.
Is it normal?