I love your question and this is a great place for this discussion! I'm a lifelong nudist and I have never been able to understand why masturbation and/or sex are treated the way they are by most nudists. Sexuality is as natural and normal as nudity. Thankfully, I have quite a few nudist male friends. We don't define our relationships by trying to label ourselves or the time we spend together. I have straight, gay, bi male nudist buddies that have had an appetite/need/impulse on more than a few occasions. Someone gets an erection...we go where it takes us. We've masturbated together, swapped oral, I've even bottomed many times. It's all in good fun. I've always believed an erect penis and a load of semen are terrible things to waste.
I totally agree!
For me I've done this also but I have to be transparent and say it's not enough for me, I like to be able to touch and be touched, a happy medium for me would be a frottage situation, we both get physical contact, some intimacy and satisfaction without any penetration. I had that with a straight nudist buddy but he always enjoyed being naked around other men. He would also like to cuddle and he'd get horny and want to lie on top of me and grind against me, which I loved, I also let him slip it between my thighs so he got the sensation of "being inside" and that was always sexy to me.
However, most of my experiences with straight and bi men always went further than what you're describing but I think it's all about comfort, boundaries and trust and I still maintain excellent friendships with those guys, and several are happily partnered with women.
Just a quickie, or should I rephrase that? As a mature nudist, I do masturbate, I enjoy masturbating and I love masturbating with other men. Yes, I am bisexual I would love that group stroking to go further, and it usually does. A great pleasure is to be with a few friends, all naked and watching porn and stroking our now hard cocks, whether they are bi/gay or straight men, everyone enjoys, I certainly do, does anyone else want to meet up and indulge in a film night?
Everyone masturbates because it's so pleasurable. It is very sexually satisfying and often done privately. Doing it together with your nudist friends as a social activity with would be fun. It brings open the personal sexual enjoyment. Jerking off is just a climax to masturbation.
Having a drink and conversation with your nudist friends, any friends, and accepting masturbating one's genital the same time, would be a very nice nudist social etiquette. We don't seem to accept touching g one's genital the same as touching one's face. Playing with one's own genital is the same as itch-and-scratch. ( only in this kind of forum can I express such unconventional view )
I am straight, but I am also open to experiment with guys if I get the opportunity. I think a naked meeting which can include (mutual) masturbation is a great idea.
I am part of a group where all orientations are represented and meet up weekly or every other week and hang out nude and usually one penis growing and someone to notice is all it takes for all of ours to grow erect as well. To make sure all are comfortable, there is nothing allowed other than wanking yourself or mutual wank which has really bonded most of us in the group. As long as boundaries are discussed and not crossed, it can be a wonderful bonding time between men.