My collection of colorful rubber straps make such nice implements of. Especially on a slave that has been bound and a gagged for days with no chance of relief. Wearing my black rubber gloves I tie the straps around his big full balls really tight. One after another I increase the pressure and pain making his dick almost explode. Then I stroke his hardbound dick and glistening glands until he must come but cannot even squirt properly because his dick is bound soooo tight. Lovely painful.