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UnderDark Sigil 🔞

@underdarksigil.bsky.social

20, Ace and NOT looking, 18+ space where I repost all the horny depravities. Expect inflation, fatfurs, latex, transformation and reblogs o' plenty! I have a Furaffinity! www.furaffinity.net/user/underdarks… PFP by @ceoofsimps.bsky.social!

Posts Replies Media

UnderDark Sigil 🔞 @underdarksigil.bsky.social · 10h

Couple of renders for @dragonhouse.bsky.social for their birthday!! Nothing says "happy birthday" by getting inflated big and fucking round... Well, happy birthday, ya goob! hope you like being big and fucking round!

Blender render of @dragonhouse.bsky.social being inflated via bycicle pump by a Soundbyte

Blender render of @dragonhouse.bsky.social, inflated pretty damn large, holding onto an air tank with a hose in their mouth

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 10/10/2026

That moment when you go to take a shower and forget your body has water absorbent properties. Oopsies! It's too late to reach the handle now... #blender #render #inflation #fatfur #fatfurs #soundbyte

A Blender render of an extremely inflated Soundbyte in a bathroom (the bathtub) with the shower on, its stomach extremely distended and inflated with water, stretched to the point of being very subtly blue and transparent. It's squished up around the wall and over the bathtub taking up a majority of the room, glowing very slightly from the light from a window behind the Soundbyte. The entire room is foggy and steamy from the running shower.

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 08/10/2026

So if I was to possibly open up render commissions, would anybody be interested? I'm still very new to the render scene, but simple scenic pieces or ones with pretty basic sculpts I think I'd be pretty fine doing Including examples of what I mean below, it's all stuff I've already posted here lmao

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 30/09/2026

Nothing like a stroll through the city and letting it all hang out... Tried a macro piece, and hoo boy... yeah, I'm definitely gonna be doing more of these! #blender #render #macro #fatfur #seikret

A macro anthro Seikret in the middle of a city at sunset, holding a police car in his left claw. He's very chunky, with an open black leather jacket showing his giant belly and chest. Beige shorts barely cover his massive thighs.

A macro anthro Seikret in the middle of a city at night, holding a police car in his left claw, the headlights on which are illuminating the fog above them. He's very chunky, with an open black leather jacket showing his giant belly and chest. Beige shorts barely cover his massive thighs. The lights from the city are illuminating the Seikret from below.

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 19/09/2026

So a friend of mine, @fernthespider.bsky.social, let me use their model for the project... Yeah. Yeah, this is where I wanna be. I need this, like, yesterday #blender #render #inflation #soundbyte #fluffgan

A Blender render of a Fluffgan with an ass that could stop traffic laying on top of an extremely inflated Soundbyte, holding a hose into its mouth and continually inflating them.

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 17/09/2026

Blueberry alt! Might not be a good idea to get too close, lest you want to end up in the same position... #blender #render #inflation #blueberry #soundbyte

A Blender render of an extremely inflated Soundbyte laying on a bed in a furnished room, its stomach extremely distended and inflated, pooled on the floor beneath the bed, knocking a chair out of the way. The entire Soundbyte is blue, filled with blueberry juice, however its stomach is a much deeper shade than the rest of its body.

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 17/09/2026

Dude. I told you not to drink the water that inflates you big and heavy, now look what happened At least you make a damn good waterbed, though... #blender #render #inflation #soundbyte

A Blender render of an extremely inflated Soundbyte laying on a bed in a furnished room, its stomach extremely distended and inflated, stretched to the point of being very subtly blue and transparent. It's pooled on the floor beneath the bed, knocking a chair out of the way.

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 05/09/2026

I've started experimenting with different render styles and tbh, I think this monochromatic style is really hitting home Also experimenting with masking so that's fun too #blender #render #expie #goobastera #dergon

Monochromatic render of a Goobastera wearing aviators and a jacket, with a rifle over his back.

Monochromatic render with an Expie wearing a kevlar vest, limb wraps and a scarf; a Goobastera wearing aviators and a jacket and a Dergon (kobold) wearing a bandana. the Expie is carrying a bloodied hammer, the Goobastera is carrying a rifle slung over his shoulder and the Dergon is carrying a pistol while standing next to a motorcycle.

The blood on the hammer, the Expie's scarf (Striped wite, red and blue with gold caps on each end) and eyes (Orange), the gold blood on the Goobastera, the pins on the Goobastera's jacket and the Dergon's eyes (Purple, with the right eye blinded and milk white), scars and bandana (red plaid) are all colored

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 05/09/2026

Hrrrnnghgh remind me why I torture myself with Blender again (I've been working on this all day and it's still nowhere near done)

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 30/08/2026

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 17/07/2026

Y'know, I've never taken a moment to Fireflypost yet on this account lmao! Firefly's the one sona I use for inflation/weight gain shenanigans, and him being a goo dragon definitely helps with that lmao Also canonically he tastes like a mixed berry milkshake! (1/2)

Reference sheet of a multicolored pastel pudgy goo dragon named Firefly

art piece of a multicolored pastel goo dragon sitting on the floor, extremely overweight

art piece of a multicolored pastel goo dragon sitting in the rain

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 06/07/2026

Sunday night, and Anthrocon 's genuinely been so fucking amazing this past weekend. I'm so grateful for all my friends, getting to see them over the con's healed my soul in a way words can't convey NoI'mnotcrying,youare

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 14/05/2026

If you see this, I IMPLORE you to quote this post with a picture from whatever device you're using without explanation.

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UnderDark Sigil 🔞 @underdarksigil.bsky.social · 07/05/2026

I think I overdid it, but the vacation was worth it~ #fatfur #weightgain #VRChat

A VRChat photo of a Soundbyte wearing a vaporwave tank top on a lounge chair, snout deep in a magic pastry box.

A VRChat photo of a Soundbyte wearing a vaporwave tank top on a lounge chair, snout deep in a magic pasty box. His stomach is visibly round, stretching the tank top.

A VRChat photo of a Soundbyte wearing a vaporwave tank top on a lounge chair, snout deep in a magic pasty box. He is very round and fat, stretching the tank top a lot, and the pasty box and lounge chair are barely visible.

A VRChat photo of a Soundbyte wearing a vaporwave tank top. His stomach is so large and fat it covers up him and the lounge chair he is on completely from view, and stretches the tank top out an impressive amount.

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