I have an 8" suction-cup base dildo which I love to ride. I simply attach it to any flat surface (desk top, wall). I also have a hollow one which is a similar size. That gets attached to the end of a piece of pvc pipe (has to be secure so it doesn't come off), the rest of the pipe gets wedged and I either get on all fours, or I drape myself over an exercise ball and rock back and forth. Neither solution does the fucking motion for you but the feeling is still great. I have given some thought to making such a device tho. Maybe an electric drill strapped down set on a low speed, some kind of disk with an arm (think steam engine mechanism) which is attached to a point on the disk. As the disk rotates, the arm will have an "in and out motion". Haven't actually done it, but that's what I was thinking.

60 years old here. Only discovered my bi side in my late thirties. Zero m-m experience unfortunately. First wife was frigid. At some point while jerking off to a vid or pic of a woman with a big cock in her fist and a load of jizz on her face, I wasn't sure anymore who I wanted to be; him or her. Urge has just gotten stronger over the years to the point where being topped or sucking cock is just about all I think about anymore. Even when I'm fucking my wife.

Swiss Navy water soluble.

I was running the spotlight from an alcove of a large church for a theater production. Came all over a centuries old stone balustrade. Was in my teens.

Sophie Marceau. 'Nuff said.

I have a Fleshlight Quickshot. Love it.

Go slow. Lots of lube. If it feels good keep doing it. If it doesn't feel good stop. Once you get that first part in, stop for a bit and let your ass relax, then go further. Enjoy.

Swiss Navy. Use it for toys too. Water soluble so easy cleanup.

I don't travel as much as I used to but I love masturbating in a hotel room. I like the little laptop support thing that's sometimes on the bed. It's nice to jerk off lying on clean sheets.

I also was on a trip to Little Rock and looked for the local gay bar but couldn't find it. Instead I went to an adult bookstore and bought a large 9" suction cup based dildo. I had fun with that big boy in my ass stroking my cock several times. I even got hard in one of my meetings because I drifted off daydreaming about how I was going to abuse myself with my new friend when I got back to my hotel room that night. That was a number of years ago and I still use that same big rubber cock.

Another time I was in a hotel for a whole week. I saved up all my cum in a container. Then on my last night, I pretended to give myself a big facial with the warmed up cum while I stroked my cock dreaming of sucking a hard cock.

One of the hottest (literally and figuratively) things I ever did was to sit across from my then girlfriend in the cockpit (no pun intended) of my sailboat, both of us naked watching each other masturbate. It was sunny, had the autohelm on. When I came some of my jizz landed on her leg, she came immediately after that. She loved watching me jerk off. We would watch porn together (only woman who did that too) and once I took my cock out to play with it, she didn't watch the screen anymore .....

I was probably 16 or 17 and was running a spot light in a theater production that was in a church. I was in a small alcove/balcony high above and behind the audience. I jerked off because one of the actresses had great tits. I came all over the floor and railing of the balcony.