big sister who never got to be a girl in high school that gets a little sliver of that experience when her little sister throws her own prom at home just between the two of them, complete with alcohol they pretend they’re not supposed to have and a kiss they definitely weren’t supposed to have,,

disassociated big sister who only learns how to feel again when her little sister gives her the familial love she never had as a kid, along with a different more special kind of familial love she never expected,,

the shame of holding your little sister’s hand, knowing how you truly feel about her,,the little sadness you feel when you hug her and she hugs you back, but she’s not hugging you the same way you are,,when you finally tell her the truth, and she looks so scared and bewildered, shattering u inside,,

sister convention?? at this time of year, at this time of day, localized entirely within the state of alabama??

when your big sis is laying down next to u, looking into ur eyes and caressing ur cheek, thinking about how lucky she is to have a sister that she’s been able to practice kisses with in hopes of meeting the perfect boy, saying she wants this next kiss to be for real, only meant for her lil sis,,,

they don't tell u that every ao3 kudos is like a kiss from a sister

big sister who was the legal guardian of her little sister for a while, resulting in her little sis seeing her big sis as a unique mix of motherly yet still sisterly, making their adulthood romantic relationship feel nostalgic as her big sister's embrace makes her feel like she has a mom again,,,

they say that to heal from trauma you must be kind and patient with your inner child. they often forget to mention she can also be a little sister and peppering her in kisses is is critical in the healing process

showering with your sister...just calm silence with the ambience of the water running down both of your bodies,,,quietly taking turns washing each other's hair and making sure to scrub everywhere that's needed,,,spending some time at the end holding each other and sharing a kiss before finishing,,,

girlfriends still early into sister hrt, looking into each others eyes, one saying to the other "hey, you have my eyes now..." and pulling out her phone to checking through the selfie camera, realizing it's true, and starting to cry from happiness,,,everyday she gets more related to her new sister,,

big sister who calls her little sister a cute childhood nickname that came from one of their stuffed animals like "bunny" 🥺

do you like siscon posts? do you wish they were longer than 300 characters? sometimes i do too, which is why i post them to tumblr and then get sad that all the people here wont be able to see them. no longer. introducing the ao3 siscon yearnpost collection!!!!! archiveofourown.org/series/6049036

i thought about this post too much and wrote a longer version of it and thought about That version too much and now i'm posting it here in a million little 300 character pieces

feeling the air get heavy when you're in your big sister's room,,like you're not supposed to be there,,u can't help but start to sweat and want to back out,,but your big sis gives u that loving inviting look and u feel the nerves melt away,,,right, u forgot,,,she's ur girlfriend now,,,

starting a new band called red hot sister plappers, this is the title of our new single, whaddya think

girls who are dating and are unrelated but come across dark web sister hrt: simply take a sample of two girl's dna, mix it into the vial, and inject some into both girls to cause their physical appearances to slowly morph into that of fraternal twins,,,they hesitate, but,,,to have real family,,,

big sister who gets so soft and blushy and affectionate when she's drunk, holding her sober little sister's hand, then leaning against her, the little self control she has stopping her from going any further, but not from telling her all the things she wishes she could do if they weren't sisters,,,

sisters in a secret relationship, knowing just how taboo it is that they won't even text each other or talk online like the girlfriends they are, only ever showing affection to each other in person in their own shared apartment,,,but gosh are those few sacred moments between each other so lovely,,

big sister constantly making up excuses for why she keeps taking her little sister's hoodie and not just using her own, her little sister thinking she's just being an annoying big sister, not knowing the truth that her big sis likes to imagine that the warmth of the hoodie is her lil sis' embrace,,,

desperate little sister trying to get her depressed bed rotting big sister to take just one step towards self care, her big sister sarcastically saying "maybe a kiss on the lips will get me up like sleeping beauty," not realizing her lil sis really will do anything to one day see her big sis happy,,

hey. it's okay, sis. let me just wrap my arms around you, and bring you real close. there. all you gotta do is close your eyes, rest your head under mine, and relax, okay? you're doing the best you can, kiddo. just let your big sister take care of you for right now, alright? i love you.

twin sisters who can only truly feel safe when with each other,,which makes the crush they have on each other even harder to admit, the idea of losing the only girl they trust in the whole world so terrifying,,but eventually one does, tearfully spilling her heart out until interrupted with a kiss,,

big breasted little sister who loves teasing her big sister after learning she's into breastfeeding, actually letting her drink some of her little sister's warm milk when they start dating ,,

40 yr old big sister getting stopped when going to see her 20 yr old little sister at her college dorm and being asked what she's doing there and immediately puts on the mom act like "oh im here to see my Daughter!" and her little sister overhears and gets sooo flustered,,

decade+ age gap sisters....

waking up in ur big sister's embrace on a hot summer day with no ac,,ur boiling with ur sisters skin stuck to urs but u wouldn't trade it for anything,,

little sister who whimpers while making out with her big sis,,

sisters at a dreary dark academia style college, normally separated by their differing class schedules and rigorous study regimens, but always finding time to sneak around in the library that's just big and musty enough that they can find a safe space to kiss and touch each other in,,,

big sister who leaves handwritten notes a lot and curiously only dots her i's and punctuation with hearts when the notes are for her little sister,,

titanic sister ship? [imagines two giantess sisters making out] w,waow,,

sister ship? uhh yeah, i sure hope it is

little sister starting to have a panic attack and hyperventilate, but is able to be quickly calmed down by her big sister's warm embrace and reassuring soft voice,,

sis? what's wrong? you keep looking at my nervously like you want to say something...? huh? you...you have a crush on me?? but- i'm...i'm not that pretty, there's no way, a girl like you could never- what? what do you mean "the sister thing"? i don't think it's that weird to crush on your sister...

platonic nicknames to call your sister in no particular order to show that you appreciate her -honey -sweetie -love -pumpkin -muffin -cupcake -darling -the love of my life -my real actual no kidding girlfriend -shortened version of her name studies show that this improves sisterly bonds 100x over

she's your sister, and that's okay. she's everything you need.

big sister who knows about your cptsd and always has time and space for u to cuddle her, just so u can experience the love and warmth u never got to have as a kid but deserved so much,,

little sister who melts into a puddle when her big sister kisses her girlpenis..

little sister who yearn posts online, thinking she's anonymous enough that her big sister would never find her, except she registered with her phone number and her account was recommended after her big sister synced her contact list, showing every little detail of just how her lil sis crushes on her

little sister who has a different last name from her big sister because their parents divorced, leading people to think they're not related and also dating because of how close they act in public, ending up in the sisters fake dating because it's easier, only for it to later turn into real dating,,,

sisters whose relationship has no sex whatsoever at the behest of the asexual big sis,,,allo lil sis who would never pressure her big sis into doing things that wouldn't benefit both of them,,,lil sis getting her rocks off instead by having full unlimited access to her big sis' dirty laundry,,,

that one moment seeing your little sister, maybe she's just accomplished a huge achievement, or is enthralled by a movie, but you see that face of hers So Happy and the seeds of a crush are planted in your heart...all you want is to give that pure happiness to her, all the time, forever...

really on the nose siscon story where one of the sisters has two potted lilies that start out as seeds and end as fully grown flowers that somehow wrapped their stems around each other

big sister whose heart twists into knots whenever she sees or even just thinks about her little sister..little sister thinking her big sis is quieter around her now because she doesn't like her anymore,,,big sister proving the opposite when she writes a love letter just for her little sister,,

siscon life hack: when reading any kind of lesbian romance novel, imagine the characters are long lost sisters! this will surely improve your experience!

Chosen family is still family... kiss your sister!

celebrate national consanguinamory day by kissing your sister!don't have a sister? that's okay! storebought is fine!

sharing your first kiss with your sister, getting emotional thinking about how after so long feeling gross for your attraction to her, the one person that matters most to you is telling you it's okay, you can't help but start crying, your sister noticing and whispering "it's okay~" between kisses,,,