Sexual Truth Serum

Fbailey story number 197


Sexual Truth Serum


I had a chemist friend that developed a kind of ‘Sexual Truth Serum.’ It was unique. All you had to do was shoot a half a cc into her ass and wait fifteen minutes. She would become very horny and she would also tell you anything sexual that you wanted to know about her.

To test the serum I invited my sister over for dinner one night. She was twenty-eight years old and had been married for seven years. Her husband was out of town and our mother was sitting with her two children so that we could spend some quality time together. I was twenty-five years old and I have never been married but I had often considered fucking my lovely sister. After all she and her good-looking friends had teased me a lot when I was younger.

I waited until she was on her knees looking for the earring that she had dropped then I pulled out the syringe, stabbed it into her ass, and pressed the plunger. She jumped, turned around, and started wrestling with me. Luckily I had dropped the syringe on the floor behind the couch just as she turned around. She wasn’t even aware of what I had actually done to her. She thought that I had pinched her ass or something so I got on the floor with her and wrestled around for a while. We hadn’t done that in quite some time. She slapped me when I grabbed her tit after about five minutes. She slapped me again about four or five minutes later when I grabbed for her pussy. But when I held her legs open and shoved my face into her crotch about four or five minutes after that she held my face in close and tight. I was enjoying the musky odor but I also realized that the appropriate amount of time had passed by…in her case approximately twelve to thirteen minutes. My chemist friend had said that it might work according to the woman’s weight. My sister was not very heavy at all. I estimated her weight to be about a hundred and twenty pounds but then again I didn’t have to estimate, I could just ask her.

I set up my DVD recorder and turned it on. Then I asked Ericka her weight. She answered that it was a hundred and fourteen pounds that morning while she was naked and after she had gone to the toilet. Her bra size was a 34-B but she was starting to fill it out a little too much and would need to purchase a 34-C the next time. When I asked her to undress for me she just stood up and did so without any hesitation what so ever. Next I asked her how she had lost her virginity. She replied that she had let T.J. fuck her in the back seat of his father’s car on a date when she was sixteen years old. She said that she had sucked his cock and swallowed his cum on every date before that and that he had just finally talked her into putting out for him. Right after that date he dumped her and started passing her around to all of his friends. She said that more than half of the football team had fucked her by the end of that school year.

This ‘Sexual Truth Serum’ was going much better than I had hoped even for. Next I asked my sister to tell me about all of the guys that she had let fuck her since her marriage. Now that was very interesting. The best man at her wedding had fucked her in the coatroom at the reception, her gynecologist fucked her during most of her exams during both of her pregnancies, and her pediatrician fucks her whenever she takes her youngest child in for a checkup. She certainly seems to enjoy letting her doctors fuck her. She said that it was mostly the thought of his nurse coming in and catching them together that she enjoyed the most.

When I asked her if she had ever thought about sex with me she said that she had thought about it many times as she Jill off when she was younger. In fact she admitted that she had sucked my cock in my sleep when I was younger. She had even let three of her girlfriends suck me off too but only on the condition that they would spit my cum into her mouth afterwards so that she could swallow it.