my sister?
warnings: fluff, mentions of pregnancy, pregnancy scare, mentions of periods, cursing, age gap, reader is 03 liner, that’s it i think :)
summary: bf!dreamies x members little sister!reader
127.ver
requested!
mark:
• when jaemin finds out his baby sister is dating mark, sure he’s a little mad that his sister is dating, but he knows mark, and knows he’s a dork, but he can take really good care of his members, so he doesn’t have any doubts he can do the same for you. he’s maybe a little pissed that his 99liner hyung is dating his sweet 03liner sister
• mark loves to hear stories about you from childhood, loves seeing your red angry blush as you try and hit your brother and cover his mouth
• doesn’t like showing pda in front of jaemin, out of respect, but when he’s not around oh he’s all over you
• poor boy almost has a heart attack when your period is late, he’s going back in forth in his mind trying to debate the best way to tell his best friend he knocked his baby sister up.
• he’s literally sitting jaemin down to tell him, shaking almost throwing up, then looks down at his phone, you’ve sent him a negative pregnancy test and tell him your period started that morning, leaving him to come up with a lie for jaemin
• jaemin is so confused. “you sat me down all serious to tell me the store didn’t have the bread you wanted?”
renjun:
• he’s rubbing it in marks face
• you’re the only daughter, the youngest and mark has tried to keep you away from teenage boys his whole life, barely ever bringing you around his hormonal prepubescent members, but now you’re an adult, visiting him more and leaving home. and you have got renjun wrapped around your finger.
• renjun follows you around, really making sure to have an arm wrapped around you whenever mark is in the room
• when mark threatens him with push ups next practice they settle on showing each other funny unflattering pictures of you to each other. when you find out you’re pulling marks hair and telling him to quit it
• will kiss and hug you in front of mark what is mark gonna do? kill him? don’t think so
• he does tell mark that he appreciates how laid back he is, and mark tells him you can be kinda scary so he doesn’t want to overstep. renjun laughs cause he’s right
• you always threaten renjun by telling mark if he makes you upset. “all i did was watch 2 more episodes after you fell asleep!” “im telling mark, get ready for 3 thousand push ups tomorrow”
jeno:
• renjun couldn’t believe it when he found you and jeno sneaking off after one of their shows, walking into a room backstage and finding you both making out.
• jeno shits himself and you’re screaming at renjun if he’s ever heard of privacy.
• he’s just staring at you both, his face is hard to read, that is until he’s grabbing your hand and pulling you away from jeno “let me go! oh my god you’re so overprotective! it’s just jeno!”
• he tries to keep you apart, he can’t stand the thought of his baby sister kissing and making out with anyone let alone someone he views as a brother
• doesn’t stop you and jeno sneaking around though, or texting or calling late at night
• renjun snitches on you to your parents and to his surprise they already knew
• really tries to intimidate jeno now, flexing more around him casually. but he knows he could never put up a physical fight with him.
• he’s is also very straight to the point telling jeno not to get you knocked up or heartbroken
• jeno just nods along. after a while renjun comes around and all he cares about is seeing you guys kissing or hearing you both be cute to one another, tells you both to get a room.
haechan:
• jeno constantly tells you that haechan had a crush on him first. is very butthurt that he now has to share his best friend with his sister.
• jeno is not very pushy, but he is overprotective, he does ask haechan to just keep any “canoodling” to a minimum around him, but his sister is an adult she can do what she pleases, within reason
• prays every night you don’t come to him crying about haechan dumping you or breaking your heart, not really wanting to have to knock him out, but for you he will.
• you are really close with your new boyfriend, constantly around him and the rest of dream now. but you do still have to share haechan, as he keeps flirting playfully with jeno
• jeno trusts haechan and he also trusts you, always tells you will beat haechan up for you if the worst is to happen. “if my sister comes crying to me, i might have to kill you”
• haechan knows he can’t fight jeno, and doesn’t plan on making you cry, but the message is received loud and clear.
jaemin:
• seriously? jaemin? haechan tells you he doesn’t know what you see in that weirdo
• you laugh and tell him jaemin is very sweet and caring, always taking care of you and treating you like a princess
• gets a little jealous cause that’s his job, he was always your protector, taking care of you from childhood as the eldest son, and now you have your new boyfriend, jaemin, his best friend, who is doing that instead of him.
• whenever he comes home and you’re already there on the couch with jaemin he always jokes about, pretending to come and sit in the middle of your little snuggle you got going on. you always push his ass and tell him to move, he’s blocking the tv. “ouch my own sister corrupted by love, i’ll remember that next time you need to borrow money”
• you roll your eyes before smiling up at him sweetly and he copies your expression.
• you always ask him for money for new date outfits, he always says you should wear a trash bag and see if jaemin still likes you like that, before you’re getting the notification that he sent the money. you always repay him by showing him stupid photos you take of jaemin.
chenle:
• jisung practically set you up with chenle, knowing you have a crush on him. and why wouldn’t chenle have a crush on his best friends pretty little sister.
• doesn’t complain when jisung just happens to get you both alone, by complete “accident”
• you get to know chenle more and your crush just deepens, and he’s teasing you, he loves knowing the effect he has on you, you’re completely unaware that jisung had spilled the beans to him about your crush.
• chenle adores you so much, you are literally the cutest thing ever to him, short and cute, a little shy at first, a lot like your big brother.
• jisung has to remind you to please don’t kiss in front of him, allowing you both to date just doesn’t want to see all that
• neither of you remember that though, too caught up in each other.
jisung:
• chenle is gassed when you and jisung eventually tell him that you’re dating
• calls jisung his real brother now, he’s already planning your guys’ wedding
• you blush and hit chenle saying you literally only just started dating stop trying to scare him off
• jisung tells you that could never happen, hand coming to play with your hair
• chenle is grimacing “gross” then immediately gushing again about his baby sister and his best friends getting together.
• when you’re alone with jisung chenle is texting you “jisungs abs are great right?” “chenle stop texting me we’re trying to make out”
• if chenle hears either of you calling each other a nickname he will use it for you guys as well.










