As I lay in the darkness I could just about make out the silhouette of my mother in law at the front of the caravan.
I could see her head was turned to face us, but I could not see if she was awake or not.
I moved the duvet cover so that I could expose my dick, now rock hard in my boxers. I carefully pulled them down so as not to wake Cindy and took hold of my shaft.
I slowly rubbed the head and tried to strain my eyes to see if Cathy was watching. I figured if I could make out her silhouette then she must be able to see mine.
I noticed movement as her duvet shifted and it looked like she had pushed it off her. My eyes were quickly adjusting to the dark and I was now seeing outlines of shapes. I could see that she was laying on her right side facing me, her left hand under her vest top.
This made me even harder and so I adjusted myself so that my cock would be more visible.
I positioned the shaft so that it stuck straight up in the air and pulled back the foreskin with my thumb and forefinger before pushing it back over the tip. Slowly I wanked myself with my fingers while watching her.
I could make out her hand drifting down her body until she took hold of the hem of her vest top and lifted it up exposing her breasts to me. She then pushed her shorts down over her hips revealing her pussy to me. My gaze was fixed on her as she began rubbing between her legs. She bent her left leg so she could access her slit better and she turned slightly so that I could see the mounds of her tits, her nipples highlighted by the faint glow of the moonlight outside filtering through the blinds.
By moving her body her right arm was freed and she was able to squeeze her tits as she played with her pussy. I was getting close to cumming but I knew I couldn't make a mess in the bed.
I don't know what possessed me to do so but as quiet as I could I slipped out of the bed and stood, softly stepping over to her, trying to not to make a sound. It felt like it took hours to walk the 6 foot or so distance to her bed but eventually I made it.
Looking down at her with my nob out I stared as she stared back at me, alternating her glances between my eyes and my hard-on.
I took hold of her hand and placed it on me, wrapping her fingers around my shaft and she proceeded to wank me slowly.
I reached down and tried to rub her between her legs but I couldn't quite make it. She shifted over in the bed and patted gently beside her. I took her cue and knelt next to her. I could now reach her pussy and she could more easily stroke my cock.
And stroke she did! She really went for it, pumping me hard. I followed her cue and started to finger her. She was dripping wet so my finger slid inside easily. I pumped her pussy with my finger until her breathing became more ragged and suddenly her body went rigid and she stopped pumping my cock. I could tell she was having an orgasm and I was pleased I could get her off so quickly.
Eventually it passed and she resumed wanking me, but she added to the pleasure by licking and sucking the tip.
I couldn't hold on any longer and erupted. Thankfully her mouth was open and she caught most of my load in her mouth but I managed to get some on her forehead and left cheek. She scooped it up and sucked her fingers dry before smiling at me and kissing the end of my dick.
I grinned and thought I had better return to bed, but stopped at the toilet to clean up on the way back.
When I exited the toilet and got back into bed I looked over at Cathy again. She had turned over and wrapped herself up in the duvet again.
I drifted off to sleep a satisfied man.
The next morning I awoke with an elbow in my side. Cindy was telling me to move so she could go to the toilet. I got up, still in my boxers and let her past and she closed the toilet door behind her.
I glanced over at Cathy. She was on her side facing me, smiling, the duvet pushed away from her revealing her laying there completely naked! My cock suddenly got hard and stuck out of my boxers. I headed over to her and she licked her lips. She sat up, taking my entire length into her mouth in one go and sucked on it hard before releasing me.
Then she pushed me down so I sat on the edge of the bed. She turned to face me and climbed on top of me, slipping my cock into her pussy. I nearly came there and then! She sat on me and whispered in my ear.
"Just a little taster to keep you wanting more."
With that she kissed me and stood up, releasing my cock. She bent over to suck me once again, then took my hand pulling me up off the bed.