Vacuum needles

Painful horny needles while vacuum pumping. The slave is on the gynchair and a vacuum suction pump is milking his cock. I prepared some saline injections for his nipples and the needles getting bigger and bigger and the saline volume grows. I will stop once he will come into the vacuum pump. Of course he is not allowed to play with the pump and I will not play with the cock. He must get his orgasm only with the vacuum sucking. So it belongs to him, how much torture his nipples must get. So, here we go. First I put some sucking glasses on his nipples and left them there for about 20 minutes to let them grow hard. The pump was sucking and I began with some not to big needles and a little saline into the left nipple, but no result, some more saline, some bigger diameter for the needles, but still no result. He wants the hard way, no problem, so some needles for the nipples, bigger and bigger and placed well in the center. After some minutes he could not do anything then giving his milk to the vacuum pump. Check it out here.