Brought a bound guy to orgasm several times in a row

As you know, to bring a man to orgasm, you need to caress his little thing, dangling between the legs. And you can do this with a huge number of ways, the simplest of which is to masturbate a member. Well, here there are a huge number of options, how to do it - it all depends on the flight of fantasy! Suppose an unknown person (as in a porn video) fingering a lover with tied hands. And the chip of just such tactics lies in the orgasm repeating several times. With each new ejaculation, the pleasure grows like a snowball, and in the end gives unforgettable bliss.