I was clearing out the bottom of my wardrobe this morning where I keep all the sex toys that have accumulated over the years. I found an old vacuum developer which I thought was pretty useless at the time.
These things are basically a plastic tube with a rubber valve at one end which admits your todger and a rubber bulb at the other end. Once the old dick is in position and snuggly fitting the rim by means of the rubber ring device, you use the rubber bulb to pump out the air. this creates a partial vacuum and it is amazing to see how one's knob expands to fill the space.
Very interesting but not much of a turn on. But then I found this pink rubbery vagina type thing which is a clever way of jerking off. Quite good this because if you put lots of cream inside a get it warm it feels just like a cunt. But it can chafe a bit and the rubber can get a bit floppy with over use.
Anyway i had a brain wave. I put the rubber vagina thing inside the plastic case of the vacuum toy and found it was a snug fit. Using a bit of cream or spit I managed to get my knob into the hole in the vagina and then operated the rubber bulb and WOW the sensation was remarkable. The grip was fantastic for a start more like an anus than a cunt and it was possible by pumping out more air to get the thing to draw in the penis and put loads of suction on it to give the effect of a terrific blow job.
I was looking at masturbation aids on the net last night and I reckon that this machine of mine would give most of them a run for their money.
Happy to discuss if anyone wants any more details
Luckless