"Which do you prefer, my sister's breasts or mine?" I was fascinated by the feeling of beautiful big tits... I had an affair as if I was invited. "If you find out, it's over." Even though I was right next to her, the feeling of pleasure was so good that I couldn't stop swinging my hips and sucking on her massive breasts. If you feel the cuddling and fucking you can't do with her small breasts... then the erection will stop!