Choked to orgasm

I don't know why. I just don't fucking know. As her strapon stretched my ass, and my fingers feverishly working my clit I began to feel the rope around my neck tighten. My pussy thronged with the sensation. As she tightened it more my be eating became difficult and it caused my climax to quickly build. As I became lightheaded and my vision blurred my body was rocked with an explosion of sweet orgasmic pleasure. Before I could even come down she pulled tighter. Before my hands could move to try and stop her I was out. I came to seconds later. Her big rubber Cock still in my ass. My thighs soaked with my pussy juice. The rope still loosely around my neck.