Couple of months ago, visiting my mother in law with my wife. So I’m 40 and she’s 65, she’s a good looking old gal, not skinny, but also not fat and some pretty nice looking tits, had some work done, but a long time ago. So I’ve found her attractive from the first time I saw her which is 20 years ago, but recently I’ve been really thinking about fucking her. She’s a pretty prude old girl, but I’m pretty sure she and father and law have had some fun over the years.

So spending the night, forgot my sleepware, I get handed this oldish pair of boxers, the ones with the button on the fly and surprisingly, a nice torn hole right between the legs below the fly. Looking at it, first thought, what the hell, and the idea hit me. It’s perfect for setting up a nice old school cock flash. (Side note, maybe she gave it to me with the intent of catching a glance of my cock? I have a 7inch cut cock, and my wife had dropped early on that I’m large)

Got up the morning nice and early, everyone still asleep. I know MIL gets up pretty early as well. I start making coffee and fluff myself a bit, I leave the fly button open and I make sure my cock is poking out, but not too obvious. She comes down and start chatting with me, I see her glancing down and she catches her breath. Now I know she’s noticed, she keeps chatting away. My cock starts to harden, but I chicken out and push it back in and grab a seat.

Fast foward to today, MIL is visiting us without her husband, I have homeground advantage. I target the morning again as wifey is still sleeping nicely. I put on a skimpy extremely short white (almost sheer) silky shorts, it’s so thin you can see the outline of my cock veins and cut head. It’s so short that if I lift my knee to hip height, my whole package falls out. I make the coffee and again fluff myself up, this time however I’m getting harder even before I see her, I think fuck it, lets do it. I take her coffee with a nice hard cock sticking to the side pushing against the shorts, visible but not exposed. She rolls over, sees my glorious erection and start chatting to me about how I slept and every other little thing glancing, almost staring. Didn’t want to push it too far so backed out. Now the test…will she tell her daughter? Tomorrow morning I’m doing it again, but this time, I’m going to let my cock accidentally slip out hard and see how she reacts…wish me luck!