I used to swing with a couple a long time ago. She would hold my cock while I peed and then I would hold my hand between her legs when she peed. I loved wiping her pussy for her when she was finished. I am in to piss games. Sometimes I would save the pissy toilet paper for later and jack off while sniffing it. One time we met in a motel and spent the day having sex. It was great. Her husband sucked my cock. She knew I was in to watersports so she pissed on me in the bath tub. I enjoyed drinking her hot piss. It was great. Her husband watched and beat off while his wife was pissing and I was drinking and licking. Damn, thinking about this has made me need to jack off...again! This is one of my favorite experiences to relive while playing with my cock.

Never had a guy do it but a friends wife used to like to hold mine while I pissed. It was so difficult not to get a hard on.

Oh hell yes! Back in my teens, me and my buddies used to hold each others cocks when we pissed while outdoors. After pissing, we would always "milk down" our buddy's cock, which would ALWAYS lead to getting a hardon, and us jacking off together......FUN FUN FUN!

Both my 1st and 2nd wives, and my sister in law, have no hang-ups of pee play or cock play, and all the three of them have enjoyed peeing with me and holding my cock while doing that.
The fact that all the three of us were active nudists, probably made that a lot more common for us.

It would definitely be fun to pee in these urinals equipped with helping hands.

Was in a strip club during a 'private party' once and one of the dancers followed me into the mens room and held my cock for me while I pissed...

Sounds hot but I also love watersports