I've never really been into BDSM; but, I'm wondering if I'm on the edge of it.
Several years ago I purchased a penis pump. Now, reading the instructions and reading on-line instructions, I understand they should be used somewhat sparingly. Everything I read indicated not to use these pumps more than 15 - 20 minutes at a time and really no more often than 3, maybe 4, times a week. Also, one should be cautious about using too much suction as that could damage the penis. Well, considering I have 100% total ED there isn't too much damage I can do.
The pump I purchased had a squeeze bulb to use to create the vacuum pressure. I enjoyed using the pump daily. I also enjoyed creating enough vacuum pressure that there was some pain involved. I would maintain the pressure anywhere from 30 minutes to an hour. The cylinder has a 2.25" inside diameter. When I would remove the pump, my cock was the full 2.25' in diameter which gave it a 7"+ circumference. That's definitely bigger than I was used to holding onto when masturbating.
After about a year, the bulb simply quit working so I went looking for another pump. What I found were 2 pumps with a plastic hand operated pump. The store happened to have them both on sale. One was the same 8" x 2.25" diameter as the one I already had while the other was 12" x 2.5". Ha! I sure didn't need one that large for my cock but did think I might try using it on my ass. I bought both for under $30.00. These plastic handle pumps create more vacuum than the squeeze bulbs could. While the smaller diameter pumps had a small sleeve you can use, I rarely used them as the force of the suction tended to draw them up the penis shaft. However, the larger pump had a stretchy silicone cock ring with it that has a 1.25" inside diameter. Well, here's a new adventure for me. I'd never before used a cock ring. I used this cock ring on a daily basis; however, I used it as a cock & ball ring. I removed it to use the pump on an almost daily basis - sometimes twice a day as well as 1 or 2 nights a week before going to bed. For whatever reason, the ring started to separate in 2 places. I needed to find a replacement.
The pump was sold by California Exotics; so, I contacted them. They claimed not to have just the ring for sale by itself. I did purchase another 1" diameter ring at the store I had been to previously; but, I really wanted the slightly larger ring that also had more stretch. Okay, I'll see what I can find on eBay. Hmmmm... I found the exact same cock ring for sale for around $9.00. But wait, I found the same ring in a 3 pack with a 1" diameter ring and a .75" diameter ring for under $14.00. Why not get the 3 pack?
So, now I have options. Most mornings while in the tub, and after enjoying the taste of some of my pee I've peed into the pump cylinder, I then use the pump on my cock for 15 - 30 minutes. When I remove the pump al 4 cock & ball rings go on. I put the 1.25" ring on first and then both 1" rings. I put all 3 of them snugly around my cock and balls. Then I put the smallest diameter ring around just my balls. I love how they feel although due to a bad case of diabetic nephropathy I don't have much feeling in my cock. When I get out of the tub, I remove the smallest cock ring and one of the 1" diameter rings. I leave the 1.25" ring around my cock and balls and put the 1" ring around just my balls. I'm fairly certain if I had the normal amount of sensation in my cock, the extreme vacuum pressure I use with the pump and the multiple tight cock & ball rings I use, I'd experience pain. What I do experience is a lot of pleasure; but, I honestly don't know if it's pleasure I feel or if it's a pleasurable pain.
Regardless of what I feel, I like it and intend to continue enjoying it. I often wonder what the mortician might think if I have my cock and ball rings in place when he gets me. If I were 30 or 40 or 50 years old he'd think I was enjoying life. But, I'm already into my mid 70s and trust I'll be around a while longer. How many my age are enjoying cock & ball rings while diapered for fun. Well, I know of at least one.