David’s cock flexed hard underneath her hand, the spasms amplified by the constricting twine around it. He spurted once onto the black satin of her glove, the rest of the load shooting clear from his head as he moaned in ecstasy.<br/><br/>“Mmm, I bet that felt good,” she purred only a few inches from his ear. Her hand continued to dutifully milk his cock, tightly squeezing out the last few drops. She could just as easily bring him agony by putting more effort into it, but that would require that she get her hands covered in his seed coated head. “However, don’t think these rewards come so easily in the future. Think of this as a little taste of what you can get for being a good boy.”<br/><br/>With a few final strokes, and satisfied his balls were drained, she wiped the semen from the back of her fingers, then began to undo the twine around his balls. She wasn’t particularly gentle about it, yanking hard on each end of the twine so that when they unraveled, his balls spun in a circle. Once it was all off, she tossed it to the side.<br/><br/>“Well now, students,” she began, turning to the other two. Keiko still had Michael’s come splattered on her chin, and his cock and balls were still bound and dripping. Vanessa patted David gently on the rear with praise. “Mr. Carter has shown he has some hope for being a good little boy, but I see that Mr. Weston still needs quite a bit of training. We’ll get to that in a bit. For now, you can just sit there and think about what you did.”<br/><br/>She turned to Keiko and smiled. “Would you like your reward, Miss Watanabe?”