I got the surprise of my life when my Dominant divorced mother-in-law, R, found out that I liked getting fucked in the ass thanks to my wife’s big mouth. I usually went over to R’s House in the afternoon when my wife was at work for lunch and keep her company. R was a strict German, and believe that I deserved discipline on occasion, so I never knew when she was in a good mood whether I was gonna get a whipping or not. She would always call my wife ahead of time to give her a heads up, but I never knew one day from the next when I was going to get whipped. One afternoon I got a different surprise finding R wearing a 9“ x 2“ dildo with a big smile on her face. Knowing exactly what she desired my asshole started smarting. I came in through the laundry room where she made me get completely naked then tossed my clothes in the washer. Grabbing me by my stiff cock, she took me into the bedroom, then first she gave me a long, hard whipping with a switch, then put me on all fours fucked my ass, like a pro. Judging how I responded having several prostate orgasms and coming several times my mother-in-law knew exactly how I felt. After the fuck, she had me on my knees, worshiping her cock with my mouth, begging her for more.