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bigberserk.bsky.social
BigBerserk
@bigberserk.bsky.social
670 followers 6 following 100 posts
APTF/Masculinization digital artist. I grow gaunt gangly guys 🧑🏻 into bigger bushy bearded big-bellied bears 🧔🏻 on the (ir)regular.
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bigberserk.bsky.social
The worst part about being me, is that I dream and sketch so much, but a lot of it doesn't see the light of day
This is a small crop of my WIP of Spierbeer from '23, where Preston is bumping belly with Cooper on the right 🥵
November 15, 2025 at 12:33 AM
bigberserk.bsky.social
Looking through old DMs, found this lovely anatomy-atrocity but it had some good fucking vibes
October 20, 2025 at 9:16 PM
bigberserk.bsky.social
It absolutely sucks that we cannot read about Gene's transformation in Old Man Cravitz after Tumblr decided to purge @aardvarkia.bsky.social's account there.
Gene got such a glow-up that Halloween, really budding up into a proper man.
#APTF #Masculinization A young adult is experiencing a dramatic transformation where his torso and pecs are swelling up beyond what is normal, covered in hair. #APTF #Masculinization The perspective peers down at a young adult who's peering down at his crotch, pulling back his pants to reveal a plethora of pubic hairs. #APTF #Masculinization A age progression transformation is undergoing of a man is seen from the side, where everything between head and thighs have been transformed into a much larger and hairy male. He looks at the viewer indifferently, his genitalia spilling out. #APTF #Masculinization A shirtless, very hairy man covered in white hairs is walking down a flight of stairs, smoking a cigar. He's now completely transformed, big belly projecting forward and with male pattern baldness showing his shining scalp.
October 20, 2025 at 8:06 PM
bigberserk.bsky.social
Reuploading an old obsession, based on 'Upgraded' by @aardvarkia.bsky.social
#APTF #Masculinization
A young adult sitting in a first-class seat on an airplane, sipping from a glass, as his left hand firmly grips the incredibly oversized hairy gut that has splayed his shirt wide open. It's too large for him, but his expression is unfazed. A large seat belt wraps around his midsection.
August 23, 2025 at 8:05 PM
bigberserk.bsky.social
Proper men, with too much hair adorning your faces, but you shave to maintain the image. I respect you.
Real men, with so much hair on your faces that it crops up under your shirt, and you let it flourish everywhere else too because you like it. I thirst for you.
August 9, 2025 at 9:45 PM
bigberserk.bsky.social
2020, some close-ups 2/2
Like really, you're caressing this bulky mountain of masculinity
#APTF #Masculinization
NSFW, a full-body image of him with enlarged body, belly, cock, arms, feet and everything inbetween. He's covered in thick body hair, and his pipe is nestled inbetween his hairy pectorals, but his face has yet to change. He has gained a thick moustache, but there's more to come. NSFW, he's fully transformed, a behemoth covered in a thick carpet of hair all over his body. His large belly prevents him from seeing his erect cock, but he's still confidently smiling to the viewer beneath his thick hairy brows. His shoulders are extremely hairy, as everything else about him is. He hefts the underside of his extremely round, hairy belly, and smirks.
August 9, 2025 at 9:00 PM
bigberserk.bsky.social
2020, some close-ups 1/2
Imagine this though?
#APTF #Masculinization
NSFW image of a young adult smoking an oversized pipe, with unbuttoned shirt showing a surprisingly hairy front from the transformation taking place. NSFW image of the same man gaining incredibly large hands, feet, and torso. His family jewels have grown in mass with a lot of hair covering him from toe to shoulders. He is surprised at the sudden transformation, his face hidden behind the generous coverage of hair across his incredibly enlarged torso which prevents him from seeing down. Three image sequence of the young adult gaining oversized man-ears, and a large hairy torso and shoulders cradling him in hairs. As the sequence progresses, his face gains a large moustache, eyebrows, and a more mature looking face. His pipe-smoke intensifies, and he closes his eyes as he pulls in a lungful of smoke.
August 9, 2025 at 8:55 PM
bigberserk.bsky.social
2020, but it still hits hard
#APTF #Masculinization
NSFW transformation sequence of a younger man transforming into a very large, hairy, older man at least three times the size of what he used to be. The transformation starts when he smokes a pipe, and as he does, his body breaks free from his clothing and rapidly transforms in four steps into a massive, bearded and naked behemoth of a man. There's three extra close-ups of his younger face transforming and gaining a thick beard in the upper part of the image and changing his facial features into a rugged old man.
August 9, 2025 at 8:48 PM
bigberserk.bsky.social
What if... I added more fur?
#APTF #Masculinization
July 4, 2025 at 6:29 PM
bigberserk.bsky.social
It's Midsummer, so lets erect the Maypole!
#APTF #Masculinization
June 20, 2025 at 6:52 PM
bigberserk.bsky.social
Hairs scurrying over your skin to warm you, nestle you in
Each pound gained feels welcomed; earned
#APTF #Masculinization
APTF. A hairy man with a large white beard is caressing an oversized burly stomach, body hair showing through the gaps of a strained shirt.
June 11, 2025 at 9:36 PM
bigberserk.bsky.social
"The cloud would swell and contract as he waved it away so he could see the presentation, leaving behind a trail of smoke that hung in the air like a thought bubble covering his face. Every time he cleared it away, his hair seemed slightly shorter - and the stubble on his cheeks slightly denser."
Digital graphite sketch of a man exhaling smoke from a pipe. The smoke surrounds him, similar in appearance of a large beard around his lower face. His eyelids are lowered, his expression seemingly content.
May 11, 2025 at 5:17 PM
bigberserk.bsky.social
Imagine this, please (alt)
“Does your pop have a lot of chest hair?” “Nah,” Chase said, still scratching his back. “Don’t think I’ll ever grow-” Cutting his response short with a sudden involuntary moan, Chase’s chest erupted with thick, dense fur that puffed out like an ascot through his ripped shirt.
February 25, 2025 at 10:00 PM
bigberserk.bsky.social
To me, reading a well made snippet of APTF gets this sort of effect on me like this image:

You don't know what's beyond; but you are imagining it
It grabs you, and it doesn't let go
February 25, 2025 at 9:21 PM
bigberserk.bsky.social
Fun to look at the working files leading up to final file from something I made in 2019
Kinda prefer these expressions, in hindsight
#APTF #masculinization
Four image sequence of a man's head and shoulders getting progressively hairy and masculine, gaining copious amount of body hair and an even more insane beard while losing all hairs on his head. He expression gets progressively more consumed by the changes, and it ends on him breathing heavily by the final picture.
February 25, 2025 at 6:35 PM
bigberserk.bsky.social
Have yourself a weekend snack
Digital graphite sketch of a very, very hairy guy undergoing an age progression transformation while smoking a cigar.
February 8, 2025 at 6:00 PM
bigberserk.bsky.social
More than six years ago that I contributed my first APTF on Tumblr 🐻 Been drawing a *LOT* of fur and bulk ever since!
January 14, 2025 at 6:40 PM
bigberserk.bsky.social
Santa comes bearing gifts! 🎅🏻🐻‍❄️
Man unevenly transforming into a much larger body covered in white hairs while dressed in a santa costume against a pink background with sparkles reminiscent of snow flakes. Large bushy mustache, torn clothing with hairs poking through, santa hat, a lot of body hair. An illustration of 'age progression transformation' (APTF).
December 27, 2024 at 8:26 PM
bigberserk.bsky.social
Drawing each individual hair is why I do this in the first place
Love the growth patterning we all share, the curls, tufts, longs and shorts, all of them slowly but surely adding to the transformation I want
December 25, 2024 at 10:00 PM