Visit by Alien

I'm well off and widowed, tech engineer by training and love tinkering with gadgets. My two children have move out and started their own families and visit me every so often. I've always been a bit of a prankster, not that had gotten much chance to prank anyone for some years. But as they, your time will come and mine came when I got two new neighbors, sisters it turned out. An old neighbor had lost her husband so sold up to live with one of her children. The sister near to me in age had bought the neighbor's house. Both widowed lived together for company and believe in weird things I thought anyway. Not the occult or strange religions, but Aliens they believe Alien walk amongst us every day. I thought poor Aliens they must be desperate and really bored to visit us on this planet. After a month watching them search the sky at night for UFOs in their backyard with telescope. Our houses are on the outskirts of our town, far enough away that the lights of the town don't block them using their telescope. After watching one those pranking shows on YouTube, I thought I should help my neighbor see a UFO. I made a UFO triangle shaped, with LED lights and a small speaker to my UFO noises. Then had my first problem how to get it flying without an engine, solution a large black balloon filled with helium. Second problem even a black object can be seen at night because it blocks out stars making a black space solution paint small silver dots of different sizes on the balloon. It would make it look like stars, without much effort. Then where and when to launch it. I'd an old shed at the bottom of my yard, I could launch unseen from there and store in the shed before and after its use. A long black cord to control its height and bring back down. They always viewed the sky from their rear deck. Remotely turning on lights and sound when I wanted too. Also, the distance from their deck would make it look better to them. I built one weekend tested it in the shed when I knew they were out; it worked quite well. My first chosen night they were out again but were home the next night. I waited until it was dark on the moonless night, before launching my balloon with lights and sound off. When it was high enough, I turned on the sound soft at first slowly increasing in volume, then turning on the lights dull at first than brightening as if it was getting closer. Then suddenly turning everything off and bringing back to earth, the first flight lasted about ten minutes from start to finish, only three minutes of sound and light working. A quick trip but longer meant it could be discovered as a fake. They only saw it about two minutes max, they heard for about an extra 30seconds before seeing the lights. They had been looking. another way, only when the sound started getting louder did, they turn. By the time they got their camera reset up to start videoing it, it disappeared. Of course, I heard and saw nothing, decided to wait awhile for launching again. Another dark night moon rise was well after midnight. Again, I launched and just repeated the first flight. They got some video, but was slightly off target, probably due to their excitement. The next night they were setup watching the right direction, I didn't launch. I waited until they started viewing other directions again, before launching again this time I put on a small show with laser pointer sending a beam towards the ground. Then again turned everything off and put it away, it was several months before I launched again, they had visitors from some UFO group they were involved with visiting. One man crossed into my yard looking about, but the old shed is locked no windows or gaps. I saw him told it was private property and he left, after all their visitors had left, wait two more weeks before launching again. I was on regular talking terms with the sisters by this time, always playing UFOs not trying to pretend I was a believer. One sister when to the city and while was away, I bedded the other sister, on her return she visited me and I bedded her also. After that I got rid of my UFO and now just visit my neighbors for sex. I did improve their equipment for them, but said the Aliens probably detect and know if you have too good equipment and will stay away. But otherwise, they are happy they've seen a UFO and I'm happy I was the Alien and I'm enjoying the ongoing sex.