I've never had anal sex with another man, BUT I love deep anal play beyond my rectum, usually on my own but often with my wife's help. I love my wife to deeply fist me, fuck me anally with 12 inches of a huge double dong, or pound my butt with a long fat dildo in her strap on harness. I have no doubt that I would really enjoy swinging bisexually with another couple if she would agree to try it once. She might be coming around. She doesn't get mad anymore when I bring it up.
I almost always get ready for deep anal play beyond the rectum with 60 to 90 minutes of deep colon cleaning. This is very pleasurable in itself. I resist the urge to masturbate. My clean out routine consists of at least 4 enemas with a gallon bag of just hot water followed immediately with a 5-minute tub expulsion using various body positions, external abdominal pressure, and abdominal massage. Most of the gallon bag (and whatever it brings along) comes out with each expulsion. I get very empty. My waistline drops 2 or 3 inches. The fourth and any following expulsions are nearly clear. After the final gallon bag, I do a very thorough, 15-minute expulsion to get almost all the water out. Then I insert a butt plug and wait 20 minutes or so to let my colon absorb whatever water I was unable to expel.
When I remove the butt plug, I'm ready for deep, clean and dry anal play with no worries about making a mess. The cleaning process totally relaxes me, and puts me into an intensely horny state, especially anally. My ass gets hungry for something really big and long inside. Either I or my wife almost always give my horny ass exactly what it wants.
My wife and I just discovered a new kind (for us) of deep anal play that we both really enjoy. She gets me ready to fuck her by pushing into me my SNCMAX3 enema nozzle, which varies from 3 to 2.5 inches in diameter over its 12-inch length. As I fuck her, my hip movements produce sensations from my rectum, prostate, inner sphincter, and lower sigmoid that are so intense that I have to fight the whole time to hold back so she can cum her usual 2 or 3 times before I cum. She senses my intense arousal, which makes her cum quickly and violently. When I let go, I absolutely explode and she always cums again with me. Fun!