A year after my wife died, I moved in with my son and his wife. I am health-conscious, take supplements every day, and remain highly virile. Seeing my daughter-in-law Itsuha naturally turns me on, though I never intended to cross the line—at least, not until yesterday. I apparently swallowed my son’s ED medication by mistake, and no amount of masturbation can suppress my raging libido. At this rate, I may end up raping Itsuha. It is only a matter of time.