don't be scared, sis.
i'm not mad.
this doesn't have to change anything.
just hold my hand.
oh, do you want a hug instead?
okay, okay, come here.
shhhhh.
you're not broken.
you're just my sister, okay?
i think this makes you extra cute, actually.
plus, your lips tasted pretty nice.
hey.
i love you.

the heat filling your face is so much worse than the summer heat,,after all, you just broke your sacred bond with your sister by kissing her,,
"im- im sorry, sis, i-"
you can't even finish your sentence before your big sis interrupts, grinning,,
"c'mere, kiddo,"
then she pulls you back in for more,,

living with your big sis in her apartment, it's the middle of the summer and the ac is busted so you're both suffering,,you're walking thru the hall not paying attention and stumble into your sister, both of you falling to the ground,,you look into her eyes and kiss her,,all you hear are cicadas,,,

twin little sister who's more shaken yet enraptured by the new light she suddenly sees her big sis in,,twin big sister who in contrast simply tries to bury and ignore the thought of being attracted to her lil sis, something she can't do for long, given her lil sis is now making moves on her,,

twin sisters reuniting after being apart for a few years as both of them went to college, realizing just how much they missed each other's presence, their emotions taking over in the moment and independently springing the question upon both their minds: was my sister always this pretty...?

why do they make nissans but not nessans this is sisterphobic!!

little sister who doesn't understand why the solutions she proposes at her new programming job are never taken seriously (she only made it through her cs degree being motivated by her big sister's kisses as a reward for completing her schoolwork and now believes sister kisses can solve any problem)

little sister that got a taste of her big sisters soft lips once a long time ago and desperately wants more,,

asleep little sister whose half conscious state reveals just how much more she loves her big sis than she normally lets on,,

big sis slowly, wetly kissing you on the lips, over and over, feeling the temperature on your face rise,,,and the thigh she's caressing,,,she pauses, looking in your eyes, whispering "sis, is it okay if i..touch you?",,you grow redder, but nod, and she gently slips her fingers beneath your panties,,

sitting close to your big sis on the couch, both of you getting sleepy towards the end of a movie, slowly your head droops onto her shoulder, somehow her hand makes its way towards yours, then she shifts her body closer against you, every moment of increased intimacy making your heart flutter,,

little sister whose big sister isn't looking at her texts asking to cuddle and is getting impatient, so she goes to her door and starts banging on it really loud, her big sis getting startled and hearing her lil sis say between giggles "my name is harry dresden, motherfucker, open the door."

little sis who has a bad day at school coming home to her big sis who will comfort her and will plan a whole day off to make her little sis feel better

big sis who gives her lil sis energy drinks knowing that its gonna make her hyper and horny later on

big sis doing ur makeup,,trying to stay still and find something to focus ur eyes on,,they keep going to her lips,,,ur slowly getting flustered, wondering if ur big sis can tell just how down bad u are deep inside,,then u see her get flustered, her hands slowing down,,she's looking at ur lips too,,

Cis big sis helping her trans little sis do her injections and helping her pick out bras and panties to wear because she's still new to it and doesn't quite know what style she likes yet and braiding her hair and helping her do makeup and falling in love together as they spend time together,,,

sisters who get frustrated when they can't access their bluesky dms to be gay with each other after moving far away from each other, eventually causing one to put her foot down and make a multi day drive to go see her sis in person bc no data center outage can suppress her love for her sister,,

sisters that are both femme thinking they couldn't be real lesbians if they're only into other femmes but gosh they just can't stop sneaking glances at each other thinking it's jealously but the thoughts get too hot and heated and they can't help it they need their femme sis' soft body right now,,

little sis who doesn't feel good enough x big sis who loves her more than anything in the world

big sis who puts a little bit of her breast milk in her lil sis’ coffee saying it’s creamer and watching her drink it and let’s just say the only one creaming here is big sis

lil sis peeking thru the door watching her big sis make out with other girls,,

sisters who body swap,,,,,

big sister who rly likes physical affection but gets sooo embarrassed by it going beet red while her little sister kisses up and down her neck,,,

also consider: little sister stuck in her big sister's head doing the same thing

big sister stuck in your head like johnny silverhand from cyberpunk 2077, sometimes taking over your body to see what being her little sister is like, not letting you regain control of your own body and just letting you watch while she uhm,,,does stuff,,

little sister who confesses her love to her big sister but does it in garry's mod right before the "node graph out of date. rebuilding" hits and causes her "i love you so much" to turn into "i love you ou ou ou ou so much"

little sister who sees and feels every surgical scar on your body with love and awe,,little sister who helped you through the whole surgical process, wanting to see her big sis get more and more feminine,,,and attractive,,,little sister who kisses your surgical scars when you're feeling down,,

I'm not gonna take my sneakers off, I am Sneakers *gets pinned down* hey, what are you--mmmpphh... hey, stop that... we shouldn't be doing this, we're sisters... mmmmhh,,,,

girl who kisses the mirror imagining it's her twin sister,,

twin sis who always acted lovingly maternal towards you, keeping an eye on how you're doing, showing concern at the slightest hint of sadness,,learning it's because when you were kids you confessed your love to her and repressed it after she brushed it off, which she's felt guilty about ever since,,