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Sister Dom Diaper and Chastity Captions.

@sisdomdiapercaps.bsky.social

74 followers 2 following 20 posts

Captions with a sister dominant. Common kinks/fetishes featured include: Chastity, Diapers, General BDSM, piss, panties, NonCon. All characters featured are fictional and 18+. Don't like = Don't interact

Posts Replies Media

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 28/12/2025

"Incontinent Sister Diaper TF". Sorry for recent inactivity as i wasn't on over Christmas and all that. If you're not into TF, don't worry, Non-TF captions will come soon. #diapercaption #diapercaptions #diaper #piss #diapermess #messydiaper #messydiapercaption #TFcaption #diaperTF #TF

She was preparing to put me on. I was powerless as i watched as she stripped down to just her soaking wet diaper. I knew my fate was
sealed. She tore off her soaked diaper, and i had to admit i was getting horny watching her wipe down her piss-soaked pussy. In spite of the diapers
she was really good looking. She picked me up, sprinkled some powder and taped me up over her crotch. My front padding rubbed against her pussy
as she moved, my body stretching to fit her movement. I absorbed her natural sweat as she moved, but i knew that wasn't the worst i would be
subjected to. Her body odor overpowering me. This was clearly turning her on, as her pussy juices leaked out into me, as i unwillingly soaked it all up.
She lay down in bed and soon got distracted, reading the internet on her laptop, as you can do nothing but lie there strapped to her crotch. She
let out a large wet fart, giggling as she knew you were suffering as it was all trapped inside. But the worst was still to come.
Just a couple minutes later, you were flooded with urine as she had an accident. She was clearly aware of it happening as she placed her hand over
the front, squishing your padding right up against her pussy as she continued to relase her bladder out into you. Your padding unwillingly absorbed
it all. The horrible, salty taste and the smell as well. She continued to rub your soggy padding up against her wet pussy, moaning loudly. "You make
such a good diaper, lil bro" She teases.

yet You began to hear her bowels contract and gurgle, and you soon realised what was coming, even if you hoped it wasn't the case. She didn't
usually mess her diapers, but she was clearly about to make an exception for you. Her muscels worked as a couple more wet farts exploded out.
WIth her pushing, soon large amounts of warm mess begin to pour out. It was even worse that with the piss. You sagged further from the weight
as you were forced to hold it all there.

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 10/12/2025

"Mall Trip Set-Up" This is Part 1. Part 2 will be coming soon. May also be a part 3. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #piss #diapermess #messydiaper #messydiapercaption

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 08/12/2025

"Chastity One-Shot 1". Wanted to do a more chastity-focused caption, and i'm really happy with how this one turned out! #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #spanking #wetdiaper #diaperwetting #chastity

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 06/12/2025

"Begging" By SisDomDiaperCaptions. One-shot (ignore my re-use of the character name) #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #spanking #diapermess #messydiaper #messydiapercaption #wetdiaper #wetdiapercaption #diaperwetting

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 02/12/2025

Mean sister introduces brother's crush to him while he's diapered. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #spanking #diapermess #messydiaper #messydiapercaption #wetdiaper

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 29/11/2025

Kyle and Emily Part 6. Kyle falls for Emilys trick game that results in a messy diaper and a very harsh punishment. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #diapermess #messydiaper #messydiapercaption

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 27/11/2025

Sister forces suddenly bedwetting brother to wear diapers to school and mess in class with help from suppositories. Parts 1 and 2 of 2 are here. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #spanking #diapermess #messydiaper #messydiapercaption

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 24/11/2025

"Well, i think it may be time to invest in a chastity cage, diaper baby". Sister forces brother to be messy diapered maid, with teasing orgasm session. . #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #spanking #diapermess #messydiaper #messydiapercaption

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 21/11/2025

Laxative prank on sisters incontinent friend results in humiliating diaper punishment at a party. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #spanking #diapermess #messydiaper #messydiapercaption

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 18/11/2025

Sister catches pull-up wearing brother masturbating. Spanks him and locks him in chastity(OneShot) #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #chastity #chastitybysister #chastitycaptions #spanking

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 16/11/2025

Sister catches brother stealing panties, gives him a deserving punishment. All three parts here. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #diapermess #messydiaper #messydiapercaption #enema

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 15/11/2025

Pts 4 & 5 from my series. Diapered brother is shown off to sister's friends and then (with secret laxative aid) makes a messy accident in front of them. Then he gets a humiliating diaper change. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #diapermess #messydiaper

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 14/11/2025

Note: I'm extending the amount of parts the current ongoing series has. Not sure how many there will end up being, but i have more ideas for this. Will probably also do more oneshot captions inbetween.

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 13/11/2025

Sister pretends to use the bathroom as pull-up wearing brother fails to hold it from the laxatives. 3/6 from my series. #diaperboy #diapersissy #diapercaption #diapercaptions #diaperedbysister #diaper #diapermess #messydiaper #messdiapercaption

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 10/11/2025

His first of many Pull-Ups. #diaperboy #diapersissy #diapercaption #diapereredbysister #diaper #chastity #chastitybysister #panties #piss

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 10/11/2025

"This is the third accident in the last week!" 1/6 #diaperboy #diapercaption #diapersissy #diaperedbysister #chastity #chastitybysister #panties #panty #wetpanties #piss #pisspanties #omo

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 10/11/2025

(diapers) Keyholder Sister makes brother give tongue. 1/1 #diaperboy #diapercaption #diapersissy #diaperedbysister #diapermess #diaperpoop #chastity #chastitybysister

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 09/11/2025

*blush* "Alright sis..." 2/2 #diaperboy #diapercaption #diapersissy #diaperedbysister #diaperfetish #diaperlover

Sister Dom Diaper and Chastity Captions. @sisdomdiapercaps.bsky.social · 09/11/2025

"But i can't hold it much longer..." 1/2 #diaperboy #diapercaptions #diapersissy #diaperedbysister #diaperfetish #diaperlover