Please tell me the best position for using Aneros

If you mean how your body should be, I lay on my back. Its perfect. The toy moves exactly the way it needs to. I have easy access to my nipples. I can tickle my balls and groin and legs and everything. Later when my session is done I have easy access to my penis to conclude with a monstrous Super T. For me being on my back is the only way!

I agree with @techpump for pretty much the same reasons, but there's no "right" answer to your question. Some people's favorite position make zero sense for me and don't work at all. Some positions I like are great for sessions but probably not good for my joints or back in the long run. 

It's all about experimenting and finding which positions work best to get things aligned internally and allow you to relax and breathe freely. On you back with various levels of leg elevation or legs bent and feet flat on the bed is a great place to start, but you basically have to try everything. Also make sure the toy can move without catching on the bed or pillows etc. 

Posted by: @zentai

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I agree with @techpump for pretty much the same reasons, but there's no "right" answer to your question. Some people's favorite position make zero sense for me and don't work at all. Some positions I like are great for sessions but probably not good for my joints or back in the long run. 

It's all about experimenting and finding which positions work best to get things aligned internally and allow you to relax and breathe freely. On you back with various levels of leg elevation or legs bent and feet flat on the bed is a great place to start, but you basically have to try everything. Also make sure the toy can move without catching on the bed or pillows etc. 

And also make sure the toy doesn't fall or slip out on its own because of the position of one's body! I used to think being on my knees was a good way to have a session, and that idea lasted all of maybe a few days of trying before realizing the toy + gravity work against what I needed.

Yah I also agree that whatever position it is, it should be comfortable and like effortless to be in. Also something that turns the user on, or makes them feel hot and sexy. Feeling sexy always helps!

I've sort of developed a bit of a pattern. I usually start out mostly on my side, sometimes at a bit of an angle towards my back with one leg out. When things get going I'll be fully on my side, legs bent up, arm wrapped around a pillow so I can scream if need be and have access to my nipples. Eventually I will prop myself up on one elbow. I could swear my prostate goes through cycles as it swells, the sweet spot roaming, and I adjust my position, starting on my side and bending different ways as the orgasm progresses. Eventually, I end up on my back, pressing on my perineum and any and everything else that feels good. 

The bottom line is I do what feels good to me, but it can change multiple times throughout a session. Comfort and access play into that heavily as well, as without them, feeling good becomes a challenge even on a good night.

Over the years I’ve tried every position mentioned in this forum and imho, one isn’t necessarily better than another.    As your pelvic muscles strengthen, your ability to control the device in multiple positions will follow suit. As stated by others above, the key is free movement of the massager and comfort to fully relax your body.  When I first began this journey. I always had sessions on my back, feet flat on bed with a pillow under my lower back to slightly elevate my pelvis. It definitely worked and I had my first prostate orgasm in that position.  Fast forward 12 years later and I now like to start out on my knees ass up with a line of sight down to my cock.  As the pleasure waves begin to flow, watching the streams of stringy pre cum dangling from my dick makes me even hornier and the sessions more intense.  When I reach the dry o stage I get even more turned on having that bird’s eye view of pearls of prostate fluid slide down the pre cum strand that stretches from my dick to the floor. I haven’t encountered difficulties keeping the device in while in this position, but I honestly think early on I probably would have due to weaker muscle control in my pelvic floor starting out.   I now also find that squatting on the floor, knees splayed out with my back supported against the side of the bed is also very stimulating for me. In this position I watch my cock pulse and bounce in rhythm as the dry orgasms occur.   Also easy access to the nips and cool to watch my dick go from soft to semi chub to hard as steel and back repeatedly.  Damn, I think I may need to excuse myself for a bit.  In any case, like most things you’ll experience while discovering the world of prostate play, one size doesn’t fit all.  Do what feels good for you, period. Your body will guide you over time what it likes.  Best of luck to you!