1 - 20 of 150 Works in Sunday Has a Vagina (Honkai: Star Rail)
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Lately, Aventurine's been so incredibly swamped with side projects that even texting back and forth had turned scarce between the two. Always being bombarded with work emails and business proposals when all he wants to do is go home and feel his beloved's warm embrace has certainly been a grueling task. And even though it's nothing someone of Aventurine's status can't handle, the second a few weeks off became an option, he immediately booked the most luxurious cruise he could find and dragged Sunday away from his trailblazing duties to come along.
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Avenday/Sunturine Week 2, Day 7 - Family / Trust / Cuddles, Canon Compliant-ish
Slight Canon Divergence - They're married, and in the future, they live together on Pier Point ♡The two times Aventurine learned Sunday was expecting.
And the one time they celebrated the same way their family was conceived.
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this could be a cold night (this could be a warm nest) by Anonymous
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
31 Dec 2025
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. . .Suddenly a wave of heat ripples outward and Aventurine shudders. A full-body shudder. One that forces his chest to raise and fall in sharp, rapid moves. Mint. He thinks Sunday smells like mint; bright pop of something fresh and cool with an undercurrent of something sweet and rich. That… it feels right, and it is hilariously fitting. A smell so fresh and clean and pleasant. Like the security of a refuge. Like Sunday.
Or: Sunday is hit with his first heat, long overdue as it is. Aventurine is neither an alpha nor an omega, but he still helps him through it.
Series
- Part 5 of an infinite procession of sunturine
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xianzhou dish with a side of coffee. by yuritenshi
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
29 Dec 2025
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Sunday wanted to give Welt a gift, people of the Xianzhou decided to help!
Series
- Part 1 of sunday's journey to redemption
- Language:
- English
- Words:
- 1,465
- Chapters:
- 1/1
- Kudos:
- 5
- Hits:
- 187
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Sunday's Freaky Friday by Undead_MaskedFool
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
23 Dec 2025
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Stelle was very hesitant when Sunday suggested neglect play as their scene. She almost screamed because neglect play? Neglect play!? Of all the things Sunday wanted to try experimenting at, he wanted fucking neglect play???
She cleared her throat, fist placed above her mouth hoping to hide the small flush on her face. “But why neglect play specifically?”Sunday ducked his head, his bangs covering half of his face while his eyes stayed glued to the soft carpet beneath their feet. “Please take no offence to this—“ he said, as quickly as though he wanted the confession to be over as fast as a warp jump, “— but I first confessed my grievances to March and Dan Heng.”
“Ah,”
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Shameless Kisses… and More by fgnefgernz
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
20 Dec 2025
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Sunday sputtered. His wings itched to hide his face again. “I am not undressing in the middle of the Party Car.”
A terrible, terrible lie.
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You drive Sunday crazy with your mouth late at night.
(primarily uses AFAB terms)
Series
- Part 5 of Weekend Gooner
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It took Sunday several years to find a way back.
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Just a Business Transaction by Wurstdurst (Marlemarle)
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
06 Dec 2025
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Aventurine was chosen as a candidate for marriage with a former business partner and current criminal Sunday Oak.
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”You will never have a better opportunity for a little bit of vengeance, if that is what you are interested in,”
Aventurine rolled his eyes and continued to walk around the desk in circles with Jade behind him. He could leave her office.
“Well, if you truly are not interested I am sure I can find someone else who is very interested in the Oak heir that fell from grace,” Jade then mused out loud, “I do have to keep my end of the bargain to move Sunday into the IPC house arrest after all. Though I wonder what reasons other candidates have for agreeing to a marriage with Sunday,”
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SUNDAY GETTING FILLED WITH CUM!!!!!!
Yeah, Aventurine, Ratio and Argenti taking turns on Sunday while he begs for more, that's it
Series
- Part 6 of Nest of a dove
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Sunday has some complicated feelings regarding his situationship. Robin helps out.
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According To Scripture by Wurstdurst (Marlemarle)
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
24 Nov 2025
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According to scripture The Harmony affected some of the symptoms of pregnancy. Mostly the emotional ones. Even as a reasonably religious man, Sunday always believed that to be somewhat of a myth. Just a lucky coincidence that those who followed the path of Harmony had a relatively happy pregnancy. A side product of having access to tuning and telepathy that their partners during and after were usually very attentive and emotionally intelligent. Just like taking care of a newborn came slightly easier for THEIR followers, as the children could communicate their exact needs much earlier. They were simply attuned to the parents.
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Sunday and pregnancy cravings.
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Sunday takes a deep breath. It’s not like he and Aventurine haven’t had sex before, anyways—it just feels strange all of a sudden. He feels vulnerable, like usual, but in a different way than before. Almost as if instead of risking the possibility of something going wrong, he’s risking the possibility of things going a bit too right. If he indulges himself in this wonderfully wrecked version of the man he’s exchanged kisses and heated touches with for months now, it could give him too much of a high; one that he doesn’t deserve.
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If the synesthesia beacon has somehow evolved to override the swear-y thoughts inside his head, how much longer until it controls all of his thoughts, or worse—wipes his brain completely? After all, he ain’t exactly a saint. This new development goes beyond the IPC fudgin’ with him a little, turning him into a PG-rated joke and eliminating half of his vocabulary. It’s malware.
‘A little bird tells me another, more verbose ailment plagues you, and I believe I can offer you relief in equal measure to what you can provide me.’
Boothill places a hand on his forehead. This is getting ridiculous. Forget saving the universe from Sunday’s supernova pheromones like some noble galactic hero—if Sugar Bird can fix his synesthesia beacon, he’s not above kowtowin’ and barkin’ like a dog.
Or: Boothill's synesthesia beacon experiences another concerning malfunction, and Sunday makes a proposition.
Boothill x Sunday (BootDay)
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Hang Fire, By Design by Anonymous for sanguinedreamer
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
04 Nov 2025
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The contract said "get rid of" the Oak Family head, Sunday. It didn't specify how. So when Gallagher discovers the mafia leader's secret—that he's actually an omega posing as a beta—a bullet seems wasteful. After all, claiming Sunday for himself is not only an effective way to neutralize the threat but also serves to kill two birds with one stone: save Gallagher from his loneliness and Sunday from his hubris.
Series
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Promises and Broken Vows of Chastity by senchavoid
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
04 Nov 2025
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Avenday/Sunturine Week 2, Day 1 - Firsts/Penacony/Business Marriage AU (and angst kind of)
Canon Divergence, read the tagsWhile Sunday prepares for the Charmony Festival, the IPC decides it would be a great idea to get into contact with The Family to start ownership negotiations. Sending one of the Stonehearts, Aventurine, negotiations start on the right foot until other members of The Family and the IPC dislike the way they handle things. Taking matters into their own hands, they coordinate a business marriage between the two of them without their input.
Sunday experiences a lot of "firsts" with Aventurine by his side.
Series
- Part 8 of 2025 avenday/sunturine week
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[ AVENDAY WEEK ROUND 2 - Penacony/Enemies with Benefits ]
Surprisingly, Aventurine had nothing but pure intentions when inviting Mr. Sunday, the Head of the Oak Family, the man he was supposed to somehow build a business relationship with, to a bar to get to know one another. It still ends eventfully, though — for better or for worse.
Series
- Part 1 of K's Avenday Week Submissions
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Deliver Us From Sin | The Ninth Gate by ExoticAlmonde
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
26 Oct 2025
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“Show me.” He demanded.
Sunday swallowed thickly, throat bobbing.
“Show… Show you…?”
Answers to questions I cannot ask.
Feelings, which have been manifesting inside me.
These desires, which have been festering like a weeping wound.
Right now, all Sunday could think about was the person before him.
---Father Sunday is trapped in a beautiful nightmare, where all of his virginal questions could be answered. With the blessing of Ena, he is given the chance to explore all of his desires, a path through which he would find himself and a key to the cage he longed to escape.
With the Hound of the Dreamscape by his side, change doesn't look quite so frightening anymore.
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An ongoing dream (there's only you and me) by bai lian hua (bloominache)
Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)
25 Oct 2025
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"It should be someone like you, Sunday, cute and loving like you are — or perhaps I should just marry you instead ", you chuckle while hugging him one night on your bed.
Sunday looks up at you, his eyes bright with confusion, "But aren't I your son, daddy?".
Reader x shota Sunday.
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星期日在家偷偷自慰，被加拉赫捉包在床。
Series
- Part 1 of 小鸟赞美诗
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He was glad that he could hardly see, if he was spared a glimpse of their faces and the way his body was folded, he would die of embarrassment. Why was he in this position anyways? Did some entity above him enjoy putting him in such misery? Ah, no, he put himself into this. He wanted to prove that he wasn't stuck up, able to and was willing to act outside the box that he loved to conform himself in. He must've taken a nap in the closet during the nosiest part of the house party, to avoid interacting with anyone.
Now he's stuck in the closet with these two, trying not to get caught especially since the room has been occupied by a couple.
---Sunday gets dp in a closet, thanks