Tease & denial with masturbating machine

Description: English clip this slave is very excited, i left him alone a few minutes and he immediately started masturbating, his desire is to cum but i don't know if i will give him this pleasure.i will use a masturbating machine, he will be tied at the wrists and i will have fun maintaining his erection with this object, increasing the intensity of this machine that masturbates and sucks better than anyone else, in fact he will come to the limit several times, but i will promptly block his orgasm and to increase the intensity of my fun i will insert squeezes to his nipples and strokes or squeezes to his balls, if he soils the machine with his pre ejaculation fluid he will have to lick it, at the end i will make him cum do you think?