Xander "Harder, harder!!" Harmony cried, bouncing between the two of us. "Darling, if we go any harder we might split you in two," Levi warned from behind her. "Please!!" She begged, trying to move her body in time with ours. Levi and I exchanged an exhausted look. Harmony has been absolutely insatiable her entire heat. We had to send for more condoms, which I thought I bought enough for three heats, but boy was I wrong. We were three days in now and hardly had any sleep, nor did we eat more than a few bits of something before Harmony was climbing all over us again. We tried to take turns with her, switching on and off, so the other could have a break, but our mate was not having any of it. She had an almost feral look in her eyes. I didn't know if it was normal or not. I had neve