I focused on the backs of her legs and turned the little wheel of the binoculars with my thumb to sharpen the image. She was bending over one of her pots and pinching something on a plant to remove it. Her dress was riding higher and I glimpsed an extra three inches of white thigh. As she attempted to stand erect she put both hands behind her back and straightened with an effort.
I fantasised that I would stealthily creep behind her and slide my hands under her dress. She would jump with surprise and then allow me to fondle her buttocks. I would pull down her panties and slide my fingers between her thighs to caress her eagerly awaiting pussy. She would gasp with pleasure and open her legs wider to invite further exploration. Her gasps would become moans of ecstasy and she would bend forward to allow me to enter her. I would slide my rigid penis into her sopping hole and fuck her.
It was all too much and I turned away from the window and flopped onto my bed. My penis was rigid and I reached urgently for some tissue. I didn't want to come straight away so I just gripped and squeezed myself while I continued my fantasy.
Why did she excite me so much? She was roughly the same age as my mother but there was something incredibly sexy about her. The first time she excited me was when I was thirteen and I passed by as she stood at her front gate. She had bare feet with red painted toenails and she said, "Hello". She asked me how I was getting on at school but I couldn't take my eyes from her feet. I started to get an erection and put my hand in my pocket to disguise it. I haven't got a foot fetish and no woman's feet have turned me on since.
Her husband was a cab driver and worked until late hours. I often wondered if they had sex because, if they did, it had to be during the day. He had little to say and always acknowledged me with a grunt.
I continued my fantasy. She was moaning and begging me to fuck her harder so I thrust my cock into her.
I couldn't hold back any longer and quickly spread tissue over my chest. My strokes became faster and I could feel the early tingle of an orgasm.
Then I was interrupted with, "You randy bugger."
I looked up and it was Sis. My sister was nineteen and a year older than me. She was tall and blonde and the best looking girl around. We had an unusual and intimate relationship and loved each other dearly, but not in any way sexual. We had always been good friends and there were no secrets between us. We frequently went skinny dipping together and always discussed our sexual exploits in graphic detail. She had seen me with an erection many times without ever being the cause of it.
She stepped into the room and shut the door. "Sunday afternoon is a strange time to be having a wank. What has brought this on?"
I said politely, "Please be kind enough to fuck off. This is a personal matter between me and my dick."
She ignored my request and sat on the edge of the bed. She persisted with, "Answer my question. Why are you abusing yourself on the Sabbath? Something must have made the blood rush to that monster you call a penis."
I sighed and said, "Okay if you must know, I was in the middle of screwing Mrs Henderson and now you've spoiled it."
Her eyes opened wide in astonishment, "You're kidding me. Surely you don't mean Mrs Henderson from next door?"
I answered firmly, "Yes, Mrs Henderson from next door. Now please go away."
She remained seated on the bed and continued, "I knew there was something weird about you. Why on earth do you fancy her? Not to mention that there is a slight age difference."
I decided to counter attack. Don't you ever fantasise about older men? Like when you're masturbating in the bath?"
"Who says I wank in the bath?"
"I stood on a chair and looked through the glass over the door."
She exclaimed indignantly, "What? You didn't really see me do it did you?"
"You put your heels up on both sides of the bath and squeak when you come."
She put her hands over her face and giggled. "Do I really squeak?"
"You whimper like a baby and then cup your hands over your pussy and push your fingers inside."
She giggled again. "How many times have you watched me?"
"Only once and it was purely for scientific research. And if you must know, I've always fancied Mrs Henderson but don't ask me why."
She looked hurt. "You've never mentioned it before."
"Should I have?"
"I thought we were supposed to be buddies."
I felt guilty and replied, "We are buddies but it's a bit embarrassing to admit that I letch after someone who is old enough to be my mother."
She said generously, "Okay I'll let you off this once. Carry on then."
"Carry on what?"
"Finish what you were doing."
I wasn't at all embarrassed but I said, "I can't do it with you sitting there, it will ruin my concentration. Anyway it's wilted now and I've lost the mood."
She said, "Come on be fair. You've watched me in the bath so I want to watch you. Just shut your eyes and do to her what you were doing before. I want to watch you come."
I knew she wouldn't give up so I said, "Okay but don't interrupt."
My thoughts returned to Mrs Henderson who was bent over with her dress up and her panties down to her knees. Her pussy was warm and juicy and I began to thrust deep into her again. My cock was soon firm again and it was not going to take long.
Sis whispered, "What are you doing to her?"
I dropped my hand in frustration. "I told you not to interrupt. How can I maintain my train of thought if you keep talking?"
"Just tell me what's going on. I want to know what makes you come; purely for scientific research."
I surrendered to her persistence. "All right but keep quiet." I closed my eyes and I was soon back to Mrs Henderson again.
I began my commentary with, "She was in the garden and I crept up behind her and lifted her dress. I pushed her forward to make her bend over and pulled her panties down to her ankles. Now I've pushed my hand between her thighs to fondle her pussy. I've dropped my trousers ready to enter her."
I announced, "Now that you're completely up to date is it okay if I can start to fuck her?"
She answered officiously, "I'm really grateful for the background information and you may now continue."
I replied, "Thank you very much. You've completely ruined what was intended to be a private moment of pleasure and it will be a miracle if I now manage to achieve an orgasm. It would be less distracting in the middle of a supermarket."
I continued with, "I'm sliding my cock in and out of her hot wet pussy and grasping her around the hips. I'm deliberately going slowly to tease her. She's moaning with frustration and begging me to go faster."
I was now rubbing my penis with firm strokes and my orgasm was getting close. "She's begging me to fuck her harder and I'm slamming it into her."
I couldn't carry on with the commentary and gasped, "Here I come." My balls tightened and I groaned aloud as I spurted onto the tissues.