Probably not a good idea. I've read or heard too many stories of guys whose dicks were small enough to get in a vacuum cleaner hose who were injured by trying to suck their cock with a vacuum cleaner. The best rule of thumb is to never apply more suction to your cock than what you can get from a human mouth. Plus, it's a lot more fun!
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that's one story I never shared. lol.

Years ago I was vacuuming the car, and as usual was horny as fuck. The thought entered my mind so I slipped my eager cock out the side of my shorts. I was slightly semi when the tube engulfed my horny meat. The instant it sucked me in I thought I was going to have the best orgams of my life. There must have been something about the way the vacuum grabbed me right at that moment because I was almost paralyzed in pleasure from the intense sensation to my cock.

In a flash I envisioned my wife, now ex wife, coming out the front door of the house catching me masturbating with the vacuum cleaner like a horny 6th grader, so I stopped.

It would have been one of the best quick cums I'd ever had, I know. I imagined my cum load getting sucked down the tube of the vacuum cleaner.

It was a great feeling, too bad I didn't let that load go.

I used that method when I was much younger. I just put the head of my cock into the end of the vacuum hose. If I positioned it just right it would very rapidly vibrate up and down in the end of the tube. It was a wonderful sensation concentrated on the rim of the head. Cleanup was a snap because my cum was suck directly into the vacuum cleaner

Luv to fuck my vacuum cleaner. Intense spunk experience

Before I even knew about the pleasures of a hand, I had discovered what our little Red Devil vacuum cleaner could do! I had the cleanest room always! I tried it whenever I came across a vacuum hose! My Aunt and Uncle had central vacuum system in their house and I would stay there in summer sometimes. When my aunt would leave and my cousins were out playing, I would plug the hose in to the nearest socket and let it suck me to heaven! Dry orgasms back then too! Once my cousin walked in and caught me at it. He was also my age but hadn't discovered "the feeling" yet. I showed him how good it felt. I can still see the look on his face as he experienced his first orgasm. A couple years ago we were at a poker night, drinking some whiskey and my uncle slurred out a tale about one time catching my cousin with his willy in the vacuum hose! Oops! My cuz and I just gave each other a knowing look. We, my cousin and I, ended up masturbating together that night. Just like old times! It was great!

try this... 26 pages http://jackinchat.com/search.php?searchterms=vacuum+cleaner&searchin=all&filterbyuser=

I enjoy using a vacuum cleaner to suck my cock from time to time. I had seen it done and was curious about it for years and finally took the leap and loved it.

https://www.lybrate.com/topic/masturbation-hazards-when-vacuuming-the-erection-really-sucks/b1da5fb1c619f76caac53ea6d1f6d67c

Considering what I've sucked up with the vacuum cleaner - glass, insects, mouse poop, anything from the bathroom floor, it seems like a really bad idea to put something I value so much in there...

Frequently posed with an industrial vacuum cleaner, but only once ventured to switch it on. Never again!

Sucked in my entire package and beat my penis to and fro, without even helping to make it longer;

http://www.imagebam.com/image/caf6231089797354

I would say there are varying degrees of 'success' that can be had with a vacuum cleaner. It is fun to watch and get inspiration from the people who really seem to enjoy it and have found the right sort of hose/attachment for their particular needs and go on to make great sounds with it. Very much fun to watch those who have mastered the craft!

A vacuum cleaner is a similar concept to a milking machine. I've tried both and found that the milking machine gives me much more intense orgasms.

When I was like 13 I would use the hose vace to suck me off for a couple years then I was too big to fit in there I took the hose off and fucked the canister opening where the hose went in, those were the days loved fucking the vacuum cleaner

I have used vacuum cleaners to suck my dick too. By varying the tube diameter and vacuum power you get different sucking feelings. I like it when I am soft to start out. I have also used an orbital sander to get off as well. That will get you off so fast!