#vash #plantussy #nsfw alien plant biology thoughts

Vash's pussy has a confusing number of layered petals, fronds, vines, and honeyed openings, all prehensile and designed for unique stimulation, maximum pleasure, and most importantly--

Seed production. The type of seeds he produces depends on the species that fertilizes him, which is conveniently how Vash is able to fuck with any alien he wants.

Most alien anatomy is far more simple than his own. In most cases he finds a singular or twin phallus structure, or a single or twin set of cunts.

#miyacest osaatsu shibari

The ropes are crossed artfully over Atsumu's pelvis, a single line of cord running down between his ass cheeks and up the center of his cunt, bisecting his swollen lips, a thick double-knot resting snug on the hood of his clit.

Held in his lap, Atsumu quivers with every teasing stroke Osamu bestows along the taut lines of braided nylon cutting into his waist, the juncture of his thighs, the diamond shapes framing his tits.

Osamu flicks the knot and Atsumu bucks, teeth clenched on a scream. He's so aroused he's dripping right

under the table! 👀😳

#nsfw #miyacest

atsumu likes to see how flustered he can get osamu in public, working down his brother's zipper and pulling out his cock right there under the table at the MSBY franchise banquet with ten other people seated with them.

https://twitter.com/miyacestzine/status/1567269546439868416

atsumu's skill with his hands is unparalleled. he sips his wine and works osamu's dick like the gearshift in a hot sportscar, knowing just how to tease him up to the edge and pump the breaks before he can finish.

trouble is, osamu's a contrary /jackass/.

#miyahinafour #nsfw, a/b/o, post timeskip

Omegas Natsu and Atsumu get knocked up at the same time - since they share heats and ruts with both Osamu and Shouyou it's not clear who actually sired whose pups.

Which. They're all together in one big messy love nest anyhow, literally and figuratively speaking, so it's not any consequence in the big scheme of things. Their pups will be perfect and they'll have more than enough love from all four parents to keep them safe and thriving and happy.

Osamu and Shouyou see it this way, but their alphas??

HA.

#nsfw cw incest, a/b/o, miyacest, underage, osaatsu

Overse where it's expected and preferred for teen siblings or cousins to take care of each other's physical needs in puberty when their secondary genders present.

Heat/rut in adults can be managed by medication or one's mate, but prescribing medication to growing youths is considered inhumane, as would attempting to take a mate before the right emotional maturity has been reached, which usually isn't until the early 20s where dating and finding a happy, healthy love bond with a mate is appropriate.

#nsfw #miyacest cw: hs miyas, fem!atsumu, oral sex

thinking about micropeen atsumu--but what if it's micro/clit/ atsumu 🤔😳

atsumu who has her own room but the walls are thin and osamu hears her coming home from dates and slamming the door. minutes later he can hear her soft moans and panting breaths as she gets herself off.

he shakes his head. she's either insatiable, or her guy of the week's a fucktard and isn't getting the job done. both are believable, considering his sister's questionable tastes.

he knows she's having sex because she begs

#miyacest star//trek AU mild nsfw, switches

Captain Atsumu and First Officer Osamu command a Federation science vessel on expedition through an unexplored quadrant of space.

After surveying the surface of an alien planet, a transporter malfunction creates a duplicate of Osamu. There's a time delay before the second Osamu appears, so it's not clear to anyone what's happened at first. Osamu seems tired and a bit disoriented, which is understandable after all the away trips to the surface, so Atsumu doesn't suspect anything right away.

#miyacest #nsfw fraternal #twincest brainrot 💖
cw: oral sex, piv sex, underage (middle to hs miyas), she/he pronouns so you can imagine whoever you want ✨

(god, fraternal miyacest is just so good??? like you get all the goodness of twincest but then also size difference??) girls mature faster so she's taller by 5th grade and fills out first, by 7th grade her boobs are envied by all the other girls along with her curving hips and strong legs from volleyball. he's still not much to look at yet, all gangly, but he sure likes what he sees, and she

#nsfw #miyacest #miyahinafour
cw: birthdays, distance, substitutes, switching, underage (Natsu)

Shouyou and Natsu know to give the twins private time together on their birthday. It's their special tradition, after all. But this year, for the first time since they were born, they won't be in the same location to celebrate their birthday and the effect this has on both twins is unexpectedly dramatic.

Shouyou tries to appease them. "It's just a day on the calendar. Why not wait until Osamu's back

#nsfw #miyacest cw: masturbation, tentacle dildo, anal sex

Atsumu half-jokingly mentions one night that it might be fun to have a monster dildo like a tentacle or something to play around with sometimes. Osamu knows full well that behind the joke, there's a real desire for kink exploration, and damn if he's not into it too.

He finds the most massive tentacle dildo on the web, and orders a custom one with a deep grey base like an octopus, and a pink fleshy color for the S-curved

#nsfw #kageyamacest #miwa #tobio #incest

Miwa's the only one Tobio allows to cut his hair. Or rather, Tobio's not allowed to enter anyone else's salon, or sit in anyone else's chair but Miwa's.

He goes to her whenever he needs a trim, texts her to set up an appointment right after closing time and she evens out his bangs, takes the length off his neck. Easy peasy.

#miyacest fraternal twins, fem!atsumu, puberty things

They're not that different in personality or behavior or even looks until puberty hits and Osamu shoots up four inches in a single summer and Atsumu suffers the unique humiliation of going bra shopping for the first time. Osamu teases her relentlessly the day they notice her chest has started to change. Unlike flat-chested, scrawny eleven year old Osamu, the tiny mounds under Atsumu's puffy nipples turn the horizontal stripes of her tank top into wavy lines, marking her as /not a boy./

#miyacest #nsfw
they take a weekend off to move into a new apt, getting almost everything done on saturday so they can sleep in sunday and finish the bulk of unpacking.

of course they christen their new bedroom that night, despite all the physical labor of moving furniture and a truck load of boxes earlier that day, because come on. they're not going to go a single night without sharing physical connection and pleasure.

but the first night in a new place is almost like a wedding night, and in a way, the closest they can get to the real thing.

#nsfw MSBY x Hinata
cw: manipulation, cheating, hookups

Hinata's secret, personal challenge as soon as he joins MSBY is to see how many of his new teammates he can collect in his ongoing body count.

Right away, he can tell that Barnes will be the hardest one to conquer. He'd like to collect the team as a full set, including the second string, and the coaches if he can, just because. He's a healthy athlete and so are they, so why not?

On the court there's no time to worry about anything awkward, and Hinata knows by now how to tie things up

#miyacest #sunamiya cw: underage, horny teens, car sex (of a sort), tight enclosed spaces, objectification, osaatsu, sunaatsu, sunaosaatsu

Atsumu's the one who discovers the special feature of Suna's car. Osamu's the one who thinks up a way to use that feature to kill time on a Friday night, break up the usual pattern of hushed fucks in Suna's bedroom because they can't get away with it as easily at their house. The bunkbeds are a drag anyhow. Gotta liven things up some way.

#nsfw #mermay2021 #incest #mpreg #breeding
#skts-centric, side #snkm, merfolk au, royalty au.
cw: male, female, and intersex mer-anatomy 🐬, incestuous dalliances, mentions of grief/mourning, merfolk mate for life.

"Marks of Good Breeding" 🧜🧜‍♂️👑🔱🌊🌴 After three years of mourning, Prince Kiyoomi's hair has grown long enough to reach the tiny, delicate scales circling his hips at the edge of his glittering, chartreuse tail.

He prefers to wear it short—he finds the feel of it curling around his body underwater /disgusting/.

#nsfw #miyahina, top Tsumu, dick chain, spanking

atsumu can hear them fucking from the shower. hinata's letting out these tawdry moans from underneath osamu that get faster and faster, and he swears, skipping his shampoo and grabbing for a towel.

he's gotta get there quick. atsumu rubs his body down and opens the adjoining door to the bedroom. the door creaks, but osamu's so focused on hinata's whimpers he doesn't seem to notice.

hinata, though.

hinata peeks over at atsumu and closes one eye in a parody of a wink, face twisted in pleasure.

#miyacest #nsfw

osamu didn't mean to pry when his brother's phone buzzed with a new text. he just unlocked the phone to check the message and didn't think anything of it.

they were expecting a message from kita with an update on his eta for their dinner outing, anyway, and osamu needed to know whether or not to order another coffee, so when the notif came in, and atsumu was in the cafe restroom, osamu didn't think twice about taking a peek...

...and instantly realizes his mistake. the message was /not/ from kita. nor aran. nor anyone he knew.

#nsfw established miyahina four thoughts...

after msby, shouyou goes back to brazil. of course he does. they all get it, and can deal with it for a year or two. three at the most, he promises. they can visit. he'll visit too. it's not really the end, even if it feels like a breakup because the balance is broken, one of them is lost, trapped inside a phone screen or laptop microphone while the rest of them float in a directionless orbit because the sun they love is just /gone/.

natsu is inconsolable. she puts on a brave face for her brother when

#miyacest, alpha!Atsumu, omega!Osamu

Osamu grows up big and broad, while Atsumu's leaner and softer and slightly shorter, like a coyote to Osamu's wolf, both of them strong and sexy and nearly identical but Osamu can put one big paw on Atsumu and hold him down like an annoyed papa with a pup, scolding Atsumu when he's acting up. Osamu's got the nurturing traits though, ruling the home and managing the meals and the chores with a dripping masculinity that makes Atsumu crazy in the best ways. Atsumu's the breadwinner but he's kind of a pampered princess

good morning to miyacest #nsfw thoughts 😌

atsumu spooning sleeping osamu and kissing his neck while fondling those perfect pecs, and rubbing his nipples. osamu huffs a breath in his sleep and atsumu slides a hand down underneath the front of his pajamas, palming his growing bulge. atsumu licks his lips and strokes him fully hard, still kissing along osamu's neck and shoulder even though osamu's beginning to stir. atsumu keeps jerking him until osamu's hand joins his over his pajamas to pause him, and grunts, "the hell, tsumu..."