Nudity on stage is a fairly popular niche. However, I find it hot only if the performers do as well. Hence I look for signs of arousal, particularly from the male performers (where it is more apparent).
I will also accept semi-erections, so long as they are apparent. Usually this means that in some part of the video the performer is fully soft, and you can compare the size difference at another point in time.
Please, if you know of any other examples, do share. (Bonus for instances of female arousal, which I have never conclusively observed in a performance art setting.)
Cacilda: erection, semi, ejaculation
(Clip, but a full video exists; nothing else remotely as interesting happens.) Here's a well-known instance. We see a bunch of people masturbating. One of them is fully erect and cums at the end. At least one other is semi-hard, also visible at the end handing the box to the lady in front.
A Luta: erection, ejaculation
thisvid.com
A male performer climbs scaffolding and jerks himself off and cums. This is a clip but there aren't any erections in the rest of the show to my knowledge.
Cocktails: erection
A short-lived erection from one performer around 46:00.
Sombra: erection, semi, gay
Here is a performance with a huge amount of gay sexual activity. Throughout, two performers play with each other (fully erect) backstage, filming with a camera that projects it for all to see. Starting around 23:00, there's a lot of touching and kissing that clearly makes some of the actors grow. Then at 35:15 there is full-on anal sex.
Demonios: erection, gay
thisvid.com
This performance has at least one full erection, visible around 4:40.
Ponyboy Curtis: semi, gay
thisvid.com
Lots of genital fondling, resulting in some enlargement.
23cm: full erection, incomplete
https://thisvid.com/videos/joaqu-n-ferreira-full-frontal-erection-in-a-stage-play/ among others
This is fairly well known. No full videos exist, only short clips from various performances and angles. We see him masturbating to work up an erection, then revealing it. Hot, but too short. (Though I don't believe the play has any other scenes like it.)
pissing David: semi, incomplete
Interesting case; we have a fairly blatant semi-erection plus urination. however, the video is censored (but you can still see pretty much everything) and not the complete performance.
Bushwick coal mind: erection, incomplete
Edited video of a performance. You can see the male is fairly hard at 7:37.
Video art
Sometimes performance art doesn't happen on stage. These are somewhat less hot IMO but still nice.
Cybele: erection
vk.com
Here's an annoyingly edited piece of video art. Erections at (at least) 12:26 and 13:46.
“Teatro Japa”: erection
thisvid.com
No clue about this video's provenance. It's some kind of butoh reading thing, with the male performer variously soft and hard throughout.
Portal Thrust: erection, sex
vk.com
This is borderline pornography.
Teknosexualidad Domestika: erection, precum
thisvid.com
Spectacular video art with nude male and female performers. The male is hard throughout and dripping precum.
The Cave: semi
At 7:46 a male performer rubs his semi-hard penis against a female performer's pussy.
I will also accept semi-erections, so long as they are apparent. Usually this means that in some part of the video the performer is fully soft, and you can compare the size difference at another point in time.
Please, if you know of any other examples, do share. (Bonus for instances of female arousal, which I have never conclusively observed in a performance art setting.)
Cacilda: erection, semi, ejaculation
(Clip, but a full video exists; nothing else remotely as interesting happens.) Here's a well-known instance. We see a bunch of people masturbating. One of them is fully erect and cums at the end. At least one other is semi-hard, also visible at the end handing the box to the lady in front.
A Luta: erection, ejaculation
Nude in stage - ThisVid.com
Hot guy nude in sttage! Watch nude in stage on ThisVid, the HD tube site with a largest male voyeur collection.
Cocktails: erection
Sombra: erection, semi, gay
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Demonios: erection, gay
Demonios - ThisVid.com
Demonios male naked theater. Watch demonios on ThisVid, the HD tube site with a largest nudism collection.
Ponyboy Curtis: semi, gay
Naked men in P0NYBOY CURT1S VS. – Th3 Y@rd - ThisVid.com
Naked men on stage theatre in P0NYBOY CURT1S VS. – Th3 Y@rd include touching, kissing and more. Free celebrity porn on ThisVid tube.
23cm: full erection, incomplete
https://thisvid.com/videos/joaqu-n-ferreira-full-frontal-erection-in-a-stage-play/ among others
This is fairly well known. No full videos exist, only short clips from various performances and angles. We see him masturbating to work up an erection, then revealing it. Hot, but too short. (Though I don't believe the play has any other scenes like it.)
pissing David: semi, incomplete
Bushwick coal mind: erection, incomplete
Video art
Sometimes performance art doesn't happen on stage. These are somewhat less hot IMO but still nice.
Cybele: erection
VK | VK
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“Teatro Japa”: erection
Teatro japa - ThisVid.com
Ator japa de pau duro em peça. Watch teatro japa on ThisVid, the HD tube site with a largest gay collection.
Portal Thrust: erection, sex
VK | VK
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Teknosexualidad Domestika: erection, precum
Teknosexualidad Domestika - ThisVid.com
Performance/video art, originally found on Vimeo. Watch teknosexualidad domestika on ThisVid, the HD tube site with a largest other collection.
The Cave: semi
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The Cave : Anosia : Free Download, Borrow, and Streaming : Internet Archive
An orgasmic experience in a greek cave.
archive.org