It all started when my older brother slept with my wife. I ended up confessing this to his wife, my sister-in-law. Seeing her apologetic expression stirred something inside me, and I suddenly pulled her close, kissing her passionately. At first, she resisted, but she seemed to be sexually frustrated, and soon gave in completely, letting me grope and fondle her body freely. Her panties quickly became soaked, and my huge cock throbbed with arousal. Right there, I made her suck me off before thrusting inside her, making her climax repeatedly until I was fully satisfied.