I have read many mother-in-law stories and never would have believed any of them had I not experienced it first hand with my mother-in-law, Charlotte.
It started long ago when I was first married. Back then, my mother-in-law was an attractive 40-something-year-old and I was a horny 20-something-year-old. My wife and I had a third floor apartment in her father's 3-family house. Living on the third floor was great because it gave me access to the roof where I would go to tan in the nude. Since this was the tallest structure in the neighborhood, no one could see me, unless, of course, they were flying overhead in a helicopter but no Paparazzi wanted to take my photo.
One hot, summer day, I was tanning on the roof. Horny and naked, I started stroking myself and had an erection within a couple of strokes. The hot sun felt good on my erect cock and every time it became flaccid, I'd stroke myself back to hardness. The teasing felt good. I did not want to cum, I just enjoyed that feeling when you were nearly at that point but stopped and did it all over, again.
Yet, all the while I was alone on the roof, I felt like I was being watched. When I turned my head, I thought I saw my mother-in-law's head duck down. We had a bulk head door that led to the roof via a 10 foot ladder.
"Nah," I said to myself, "I'm just wishfully hoping Charlotte is watching me stroke my cock."
An hour later, I headed downstairs for a drink. Since I lived on the third floor and my mother-in-law lived on the first floor, I would climb down the ladder, go in my house, and climb back up the ladder naked. I took my time. I went to pee, grabbed a snack, and poured myself a cold drink. Only, when I returned to the back porch to climb the ladder, my mother-in-law was standing near the top and peeking over the side.
"Son of a bitch." I was right. She had been spying on me, the slut. I tiptoed over to where she was and looked up.
Clearly, I could see up her housecoat. She always wore a housecoat and never wore anything underneath her housecoat, no panties and no bra. Whenever she stood in the sunlight, you could clearly see her naked form. Whenever I was in her apartment, I always positioned myself so that when she was opening the refrigerator door at night, I could get a glimpse of her naked silhouette through her housecoat. I spent many days jerking off over the thoughts of seeing my mother-in-law naked, but it never happened, that is, until that day.
I walked underneath the ladder to get a glimpse of her bush and was not only rewarded with a good look of her pussy but an up blouse, or in this case, and up housecoat look of the underside of her tits.
So, here I am standing on my back porch naked and holding a cold drink while looking up at my mother-in-law's naked ass. She looks down, sees me standing there naked (Hey, I'm a guy and did not care if she saw me standing there naked and looking up her housecoat) and nearly falls down the ladder trying to get down while trying to make an excuse why she was up there in the first place.
"Oh, there you are. I wondered why the bulkhead was opened. I knocked at your door and there was no answer."
Knocked at my door, my ass, she did knock at the door because I would have heard her knocking. I was right there in the kitchen by my back door getting a cold drink.