"And you certainly aren't lacking down here," Scarlet said, as she prodded your penis with a hoof. It was still rock hard, even after filling her up. You finally realize that the other mares had moved closer, almost uncomfortably so as they gazed at your hands and your penis with desire. The three you had just satisfied moved off, and a few more moved to take their place as the unicorns made sure the stamina spell casted on you was still in effect.