Mark I Chester's Avatar

Mark I Chester

@sfphotou.bsky.social

75 year old gay ‘radical sex’ photographer who has documented his life in San Francisco’s South of Market sexual underground since the late 1970s. Authentic. Provocative. VERY sex positive. Also a guerrilla gallery, gay sketch group and rope enthusiast.

1,715 Followers  |  1,054 Following  |  533 Posts  |  Joined: 24.10.2024  |  2.1725

Latest posts by sfphotou.bsky.social on Bluesky

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Photo of Pablo @tiddiesdeloser.bsky.social by Mark I Chester @sfphotou.bsky.social ©️2025. From a shoot for my Racial Portraits project. A portrait before we took images for the project. Let’s just say that the chosen image probably can’t be shown on IG, but maybe on bsky.

Papi chulo mio! 🥊🩸🥊
❤️🫂❤️

01.11.2025 00:28 — 👍 18    🔁 3    💬 1    📌 0
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Photo of @selfiegeneratorstudio /IG by Mark I Chester @sfphotou.bsky.social ©️2025 from a recent shoot. A beautiful, sensual shot of Jeffrey, capturing his hard work in developing his physique. He is really rocking it and looking great!

I’m always looking for models for sketching or photographs.

28.10.2025 00:18 — 👍 25    🔁 1    💬 1    📌 0

Hot pix! 🔥

24.10.2025 23:46 — 👍 1    🔁 0    💬 0    📌 0

From my recent shoot with @thiccvirtualboy.bsky.social. His first time in a pro photo shoot. I was surprised. TVB is handsome, truly thicc and very hot! And a great guy!

20.10.2025 04:22 — 👍 12    🔁 0    💬 0    📌 0
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Photo of Jeffrey @selfiegeneratorstudio /IG by Mark I Chester @sfphotou.bsky.social ©️10/25

Jeffrey has grown and evolved. With a new trainer, his physique is smoking’ hot.

I’m just trying to use light to sculpt the body; to reveal and inspire. We need all the hope and beauty we can find right now

19.10.2025 02:48 — 👍 25    🔁 1    💬 1    📌 0
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Another shot of @thiccvirtualboy.bsky.social by Mark I Chester @sfphotou.bsky.social ©️ 2015.

OMFG!!!!!!!!

Thicc indeed but his shape and proportions are fantastic.

Sadly, I was on my best behavior!!!! 😝🤣

13.10.2025 04:57 — 👍 35    🔁 1    💬 0    📌 0

My appeal!

He’s not nude. There is nothing sexually suggestive in the pix. Bsky is going too far with this nonsense. Your moderation rules desperately need to be updated. What truly pisses me off is the distinct lack of honesty. When you’re more conservative than IG, that’s really saying something!

12.10.2025 05:52 — 👍 4    🔁 0    💬 0    📌 0

2/2
I experience life; feeling every second. Capturing that beauty is exhilarating.

We are in hell; raining fire. Where are truth, justice and what we thought was the American way?

Pandora’s box was flung wide open; all the demons of hell have escaped.

All we have left is hope. And each other. 🫂❤️

12.10.2025 05:47 — 👍 10    🔁 0    💬 1    📌 0
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Photo of @thiccvirtualboy.bsky.social by Mark I Chester @sfphotou.bsky.social ©️ 10/11/25. I found Mark on bsky and asked him to model for @gaymenssketch.bsky.social. One pose really hit me, so I asked to photo him.

When I’m photographing a beautiful man (all men are beautiful…) I feel alive.
1/2

12.10.2025 05:47 — 👍 47    🔁 4    💬 2    📌 0

The Asian man to his right is Joe Tolbe, still alive, still an activist and an advocate for our community, now living back in Hawaii where he was born.

30.09.2025 01:23 — 👍 5    🔁 0    💬 0    📌 0

Just sending you and their friends and family 💗 and hugs. 🫂

25.09.2025 00:17 — 👍 1    🔁 0    💬 0    📌 0

Or is it the fxxxing update??????

09.09.2025 04:28 — 👍 1    🔁 0    💬 0    📌 0

Grrrrrrrrr!!!!

My chat icons have disappeared from all my accounts. I don’t remember updating Bluesky, but when I go to the App Store it just says open rather than update.

Any ideas?

Have chat icons disappeared for others?

09.09.2025 04:23 — 👍 2    🔁 0    💬 2    📌 0

Thanks @deeptrance1.bsky.social.

My more personal rope page is @sfropemark.bsky.social

01.09.2025 05:41 — 👍 0    🔁 0    💬 0    📌 0

A celebration of Queer Hispanic Culture and the many ways we gather, survive, resist, celebrate, and heal. Expect art that is captivating, soft, bold, real, and straight from el corazón.❤️

27.08.2025 16:03 — 👍 4    🔁 0    💬 0    📌 0

Rosebud Gallery is proud to present JuntEsTogether in conjunction w/ @sffirstthursday art walk in the TL. 

📅 Thursday, September 4th
⏰ 6:00 PM – 10:00 PM
📍 Rosebud Gallery – 839 Larkin St, SF

a special group show in honor of Hispanic Heritage Month celebrating Queer Latine Voices in the Bay Area!

27.08.2025 16:03 — 👍 5    🔁 1    💬 2    📌 0
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Rosebud Gallery is doing a show celebrating queer Latin voices. My photo of Al Lujan was accepted.

With every passing day, in a country attacking brown skinned people, this image and its outrage gets stronger. No one is safe. Everyone except straight white Christian males are in danger and at risk.

27.08.2025 16:03 — 👍 8    🔁 0    💬 1    📌 0

Every aspect of this photo is beautifully done: model, superb lighting, great emotional energy and of course gorgeous dick. ❤️😈

21.08.2025 00:48 — 👍 1    🔁 0    💬 0    📌 0

4/4
FXXX them! I will not be silenced for fighting for a more diverse and equal world. Racism will only be defeated by each of us doing our part. No one conversation can ever be ‘perfect.’ The only way to change the systemic racism we were born into is by challenging each and every hateful aspect.

18.08.2025 06:53 — 👍 11    🔁 0    💬 0    📌 0

3/4
I still fight for equality/respect. The GLBT Historical Soc canceled my fiscal sponsorship for ‘Racial Portraits’ a book of provocative political portraits of queer men of color. It offended the exec director. I am now persona non grata. Have personal connections? This can’t be allowed to stand

18.08.2025 06:53 — 👍 10    🔁 0    💬 1    📌 0

2/4
I have always used my real name while the great majority of my heroes in the radical sex community are only known by scene names. Younger leather queers don’t understand how bad things were. How risky it was to be openly into leather/non-standard sex. Our whole community was firmly in the closet

18.08.2025 06:53 — 👍 5    🔁 0    💬 1    📌 0
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So this happened. 40 fucking years of photographing/drawing men! 1985-2025. In cement outside my front door.

Thanks to the SF Leather/GLBT Cultural District @sfleatherdist for this honor.

The promise of gay lib was to come out of the closet and live full open, authentic lives without shame.

1/4

18.08.2025 06:53 — 👍 39    🔁 1    💬 6    📌 0

Model: @justjoon.bsky.social

13.08.2025 18:48 — 👍 0    🔁 0    💬 0    📌 0

Joon @justjoon.bsky.social

13.08.2025 18:46 — 👍 0    🔁 0    💬 0    📌 0

Great pix! 🔥📷

04.08.2025 00:10 — 👍 1    🔁 0    💬 0    📌 0
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Photo of Steven @steven336.bsky.social ©️ Mark I Chester @sfphotou.bsky.social

Steven sex he never sees his butt, so here is a little butt action.

02.08.2025 05:30 — 👍 43    🔁 0    💬 0    📌 0

4/4
Somehow this image seemed to speak to me once again. I am hopeful but not very hopeful about what will be left.

Resistance. Perseverance. Survival.

21.07.2025 05:30 — 👍 5    🔁 0    💬 1    📌 0

3/4
We are again facing dark times. Rule #1 has always been - survive.

We don’t stop being who we are because dark forces want to marginalize us and make us invisible. It’s anti-democratic. It’s unconstitutional. What is life if we don’t have liberty and the pursuit of happiness?

21.07.2025 05:30 — 👍 3    🔁 0    💬 1    📌 0

2/4
We were all afraid. If only fear had been the only thing that we needed to be afraid of. Those were the days when someone seemed fine, then suddenly they were in the hospital and then quickly died. Each death a thunderbolt thru our community and our lives.

21.07.2025 05:30 — 👍 1    🔁 0    💬 1    📌 0
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Photo of Jack Mance © Mark I Chester @sfphotou.bsky.social titled ‘jack encounters x, y and z’ from the series Lost on a Sea of Desire, 1983.

The times were dark. Deaths piled up. Like some sort of evil lottery, no one knew who would be next. In fact, no one knew anything. We were all afraid.
1/4

21.07.2025 05:30 — 👍 8    🔁 0    💬 1    📌 0

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