We live in a nice suburb in sunny Barcelona. Apart from the neighboring houses which are mostly shielded by trees, our house is pretty secluded, and only accessible trough our rather noisy gate in the driveway.
I live with my girlfriend, Valerie, and we have a great sexual relationship. The thing is, that I have a much stronger exhibitionist urge than she does, although she'll quickly take me up on a challenge, although it's more to please me, than to satisfy any exhibitionist urge she may have. For example, flashing her breasts at other motorists while we're driving. However, I do get off on the possibility of being seen naked. Of having other people's eyes stroking my naked body and seeing my dick, when I "don't know" they're watching. I often suntan in the nude in our back garden, but that's generally about as exciting as it gets.
However, one Saturday morning, an opportunity presented itself, that had my mind working overtime. I was in the bedroom, rearranging my cupboards, when Valerie's mobile rang in the dining room. It was her mom, Karen, on the line, wanting to return some dishes we'd left at her place when we went over for dinner a few nights ago. I heard Valerie mention to her that she'd be popping in to the office a bit later, but she was welcome to just drop them off at our place whenever she was ready. Valerie's mom had a remote for the gate, because she was around so often. Not that I mind. Although Karen wasn't a 'bombshell', she exuded a strong air of sexiness and confidence. She had large breasts, and fantastic legs, with nice shapely hips and thighs, and at 48, she was very open minded and adventurous, judging from some past conversations we've had around the dinner table. Her open mindedness is precisely what got me thinking of my plan.
Although I would NEVER try anything with her, I knew that she was the type of person that would never be offended if she were to 'accidentally' see someone naked. In fact, she would probably send encouragement, blowing wolf whistles etc. She always carries herself very elegantly, but I knew she was very naughty, and I was going to test my theory, and get a bit of a thrill at the same time.
Valerie went off to work, saying she'd be back in a few hours. She did not mention to me that her mom would be coming round to drop the dishes off. This was perfect. All the better for me to 'accidentally be caught'. I went to our back garden and lay down on a towel, on the grass, just a yard or so from the french doors. I positioned myself so that I could see Karen's reflection in the bedroom TV, once she was at the bedroom door, (if she indeed came this way). But I faced away from the french doors, so that I wouldn't be able to "see" her should she walk through to the back garden. All was set, and all I could do was wait. My mind was racing. Should I back out of the idea? No, I would go for it. About half an hour passed, when I heard the driveway gate open, and close, just enough to let a person walk through. I knew it was her.
I was now completely naked, lying on my back. My penis was already starting to throb slightly, as I was thinking about what could happen. I was starting to have second thoughts. Would she be pissed off? Would I be hopelessly embarrassed? What was the worst thing that could happen? Just then, I heard her walk in the front door. I had the radio on at a medium volume, so I could deny hearing her, when she called "Hello?" I heard her put the dishes on the kitchen counter. Then I heard her heels walking from the kitchen to the dining area, near the back garden. I could see her reflection in the TV screen as she came towards the bedroom. Her footsteps were getting louder and clearer, "Hello?"
Oh shit, this was it! I couldn't suddenly get up now, or it would look suspicious. My heart was pounding! She was in the bedroom! I heard her footsteps come towards the french doors, where I was lying just outside, and then she stopped suddenly. Through my sunglasses, I could see her reflection in the TV. She was standing at the french doors, but slightly behind the curtain...hiding! My heart was now pounding profusely. My "mother in law" was looking at me, lying here totally naked, and I wasn't doing anything to stop the transaction! I got a lumpy feeling in my throat as I was getting very aroused. My penis was already rock hard before she was even in the lounge. The thought of Karen seeing me lying here naked, was a huge turn on. I had the fantasy run through my mind many times. It was totally taboo, and anyway you look at it, a bit twisted, but I thought hey, you only live once. Now she really WAS standing here looking at me, completely exposed, and I was so fucking horny. I just wanted to take my dick in hand and start jerking off, but that would really be pushing it a too far. (Pun intended)