That morning my back was relatively ok and I was extraordinarily horny. I started to jerk off my cameraboy that spontaneously that he did have no time to prepare his tripod. So, he had to take this act from his own perspective. I gave him short blow job but after a little while he could not resist and was fucking me very hard whereas my heavy boobies were bouncing up and down and slapping into my poor body in very painful way. It was a bit relieving when he turned me and was fucking me from behind and I could lay my udders on the bed. But later he pulled my hair and my back muscles had to start with hard work again. And they have to continue with that hard work when he was punishing my tits. I refused to go on like that and only enabled him to fuck me form behind till the happy end … But unfortunately my neck was back in terrible pain after this intercourse anyway!