On the drive up we all sat in the front seat. Since it was a hot summer day the girls decided to take off their t-shirts. They giggled when they saw the big bulge in my crotch made by the hard-on I got looking over at their perky titties. Alison told me I'd better do something to relieve that swelling between my legs or we were going to have an accident. The girls told me to turn off onto a deserted dirt road and stop the car. With a sly smile Sharon looked at me and said, “I bet you really wanna to grab your stiff penis and jerk off, don’t you?” I just gulped and blushed and looked away. Alison smugly said, “I thought so. So why don't you do that? Go ahead and pull off your shorts and give us a show?” They giggled as I hurried to comply. Soon, I was urgently stroking myself right in front of them. It was intensely embarrassing but I couldn't help myself. Sharon said she thought I was being very dirty and I should be ashamed of myself for jerking off like that. Alison agreed and said she certainly hoped I wasn't planning on finishing. Sharon added that she thought that only a very nasty man would do such a thing. With a devilish grin, Alison said her Aunt Sylvia knew exactly what to do with dirty men who openly shoot their loads in front of young girls.

Alison said that the last time they visited her aunt's farm they invited a local teenage farm boy to join them up in the hayloft for a playful chat. It was hot in the hayloft so the girls took off their t-shirts, exposing their firm little tits. Well, before you know it that dirty farm boy yanked off his shorts, grabbed his stiff cock and started pumping it hard and fast. Sharon and Alison were surprised and delighted but they sternly warned him not to finish. Well, that naughty boy didn't listen and went right ahead and squirted all over. The girls scolded him and told him he’d have to be punished. They ordered him to take off the rest of his clothes and climb down out of the hayloft. Then they told him to get down on all fours in the gelding stocks and let himself be strapped in. He did as he was told thinking they only planned to whip his butt a few times with a switch. Instead, Alison left the barn and returned a few minutes later with her aunt. When she saw the totally exposed and vulnerable boy she laughed and said it had been over a month since the last time she had the pleasure of teaching a man what the gelding stocks were really built for. The girls told Aunt Sylvia how he exposed his hard penis to them and masturbated it hard and fast until he ejaculated all over the place. She was outraged. She told Alison to run and fetch her special instruments.

When Alison returned with her aunt's special castrating instruments she sat down on a low stool behind the farm boy. Then she stripped off her shirt revealing her full breasts and stiff pink nipples. Alison and Sharon stood behind her and giggled as they watched her begin deftly snipping into his tender, defenseless little scrotal sac. When he realized what she was doing to him he began squealing in fright and begging her not to do it. The girls snickered and giggled at this. In a few minutes she was finished and started sewing him back up. When they released him from the stocks he stood up whimpering, his face wet with tears. She then explained to him that she castrated him for his own good. Then she grinned and told him she was going to add his family jewels to her collection.

I couldn't believe what I was hearing but all I could think of was how hot and bursting my cock felt. I was soon shooting spurt after spurt while the girls watched and giggled. As I finished milking my prick they told me not to bother to clean up but to start the car and drive a little further down the road. Soon, we pulled into a farmyard where we were met by a good-looking, bare-breasted woman. I was embarrassed because I was still naked from the waist down. The woman was Alison’s Aunt Sylvia and when she leaned in the side window to say hello she immediately noticed all the gooey, messy sperm in my lap and my glistening, half-hard prick. She was outraged so she lost no time in ordering me to get out of the car and follow her into the barn. She told Alison to run and fetch her special castrating instruments. Soon, I was totally exposed and vulnerable, strapped into the gelding stocks. A few minutes later she starting deftly snipping into my tender, defenseless little scrotal sac, I started squealing and the girls started giggling.

As she was sewing me back up Aunt Sylvia thanked me for coming up to visit her farm. I just whimpered and the girls snickered.