"i'm back bitches!" dahyun yelled as soon as she entered her house, stealing her brother's line.

"dahyun, sweetie, no bad words." his father scolded her lightly, stepping inside the house behind her.

dahyun ignored her father and hopped towards the living room where she found her brother and her boyfriend silently sitting on the couch while watching a movie.

"hi!" she exclaimed, jumping in front of the tv to catch the attention of both boys.

"hello." mark smiled at his girlfriend.

"move your ass, i can't see." donghyuck whined, wiggling to catch a glimpse of the tv.

"jerk." dahyun tsked before walking to mark.

she bent forwards, her delicate hands reaching for mark's cheeks to cup them, and soon, she had dropped a sweet peck on mark's pink lips.

donghyuck's eye caught a glimpse of the kiss and the bright smiles that were on their faces right after, but he didn't make a comment about it. instead, he focused back on the movie.

"so, did my brother treat you right?" dahyun asked, sitting between mark and donghyuck and gluing her body to mark's.

"yeah, he did." mark nodded, wrapping his arm around dahyun's shoulders, making the girl nuzzle into mark's hold and inhale the very manly scent of her brother. wait, brother?!

"why do you smell like donghyuck?" she asked with furrowed brows, her eyes falling on the shirt mark was wearing. she never thought people other than her brother owned soccer club shirts.

"he was all sweaty so i told him he could shower, and i handed him some more comfortable clothes for the afternoon." donghyuck explained, his eyes not leaving the screen.

"oh..." dahyun nodded, now noticing that the sweatpants mark was wearing were sweatpants that she had offered donghyuck for one of their birthdays.

the three got silent as they watched the film.

mark and dahyun were basically glued together while donghyuck gave them side glances from time to time for no reason.

soon, the movie ended, and the credits rolled on the screen, signal for donghyuck to stand up and grab the remote control to switch it off.

"are you staying for dinner?" dahyun asked her boyfriend, making donghyuck internally groan. he had been around mark enough for today, and he didn't need to spend a whole meal with him.

"i don't want to bother..." mark said quickly.

"oh, you're not. my parents are happy to have you over." dahyun told with a bright smile. "so...?"

mark sighed in defeat. "okay..." he nodded, making his girlfriend jump up and down in excitement.

"great! can you stay 5 minutes with donghyuck while i go and have a quick shower, please? i'm coming really quick." dahyun told, clasping her hands together as she looked at mark with puppy eyes.

"sure." mark agreed, looking at donghyuc for a second to make sure he didn't mind. the boy had his back facing mark, so he couldn't be sure.

"thank you!" dahyun pecked mark's lips. "i'm coming back quickly. hyuck! take care of my boyfriend in the meantime."

"yeah, i will." donghyuck replied walking back to the sofa with the remote control as his sister ran towards the bathroom.

donghyuck let out a loud sigh as he plopped back on the couch, surfing through the many movies available.

"so, what do you want to watch now?" he asked mark.

"choose whatever you'd like. i'll stay with dahyun when she'll be back in a minute anyway." mark replied, making donghyuck face him.

"in a minute?" donghyuck raised a brow. "have you never had experience with women?"

"huh?"

"30 minutes is the minimum time required for a woman to have a shower." donghyuck explained.

"half an hour?" mark's brows raised in surprise.

"yeah. first, they need to find the clothes they will wear after, and this takes a good amount of time. then, once in the bathroom, they need to remove their make up and do their skincare routine, then to tie their hair, then finally the shower.  and this takes quite some time too. they need to find the perfect temperature, apply the dozens of different soaps and bath scrub that take all the space in the shower, then rinse everything, and dry themselves carefully not to damage their skin. oh, and some even apply some more makeup after wearing their clothes to look better. and only then, they are done with their shower." donghyuck explained in one go.

mark stared at him with widened eyes, blinking a few times before letting a 'woah' escape his lips.

"you must have a lot of experience with women to know all of that..." mark declared after a while.

donghyuck huffed. "i just have a sister."

"i have one too. but she's much younger so she's not like that i guess." mark shrugged.

"you have a girlfriend now. so, you should get used to it." donghyuck hummed, concentrating on the tv again.

"what about you?"

"about me?" donghyuck repeated in a monotone voice.

"don't you have a girlfriend? i heard that a few girls had feelings for you." mark explained.

"you can tell them i'm not interested." donghyuck retorted.

"why? you already have one?" mark questioned.

"why should i even tell you?!" donghyuck said quite harshly, making mark jump.

donghyuck mentally scolded himself.

he needed to stay calm.

he needed to bear with mark.

he needed to act friendly and sympathetic.

he needed to quit being himself.

"sorry..." he mumbled. "my sister always teases me about it, so, i don't like speaking about this that much... but, no. i don't have a girlfriend." donghyuck said in a much calmer voice.

"oh, well... i'm sorry, i didn't know it was a sensitive subject and- "

"mark." donghyuck stated, looking at the older boy deep in the eye as he placed a hand on his shoulder. "it's okay."

"r-right..." mark nodded nervously, looking away.

donghyuck got back to searching for something to watch.

"how long have you and dahyun been together?" he asked.

"six months." mark replied. "it's my longest relationship so far."

donghyuck felt the urge to let out a 'i don't care' but he held himself.

"i imagined that the oh-so-perfect mark lee would have had kept a girlfriend for years." donghyuck said simply.

"well... as much as i'm good at school and sports... i'm not the best with relationships..." mark admitted. "i'm... i don't really know what to do and... yeah..."

"you'll know what to do when you'll have to do it, don't worry." donghyuck told nonchalantly, the information mark was spilling printing into his memory for ever.

"are you sure?" mark asked worriedly. "because... don't tell anyone but... i've already been dumped a few times because i didn't know how to act."

it took donghyuck every ounce of self-control he could find in his being not to burst out laughing at what mark had just told him.

who knew such a perfect student, liked by everyone, could be such a noob at relationships?

at that point, even donghyuck who had absolutely zero experience was better than him.

actually, a part of him was telling that he had finally found a domain in which he was better than mark, but then he recalled that he couldn't know since he had never dated anyone before – who knew... he could suck at loving someone...

"my sister isn't like that, don't worry." donghyuck stated, still holding himself from laughing.

"thank god." mark muttered. "i'm so scared about this... would you mind to... well... teach me a few things...? i mean... she's your sister, so you know her and... you also know girls, and you look like you have a lot of experience and... yeah?"

donghyuck grinned.

mark was just making things so much easier for him...

"come to me if you ever need something. i'd be very happy to help you..."

＃

a knock on donghyuck's door made him walk out of his dressing. "yeah?"

the door opened slowly. "i just wanted to say- "

donghyuck's eyebrows raised as he stared at mark.

the boy had his eyes fixed on donghyuck's body, and that's when donghyuck remembered that he was currently getting ready to have a shower, meaning he was bare-chested.

and mark was totally checking him out right now, which made donghyuck smirk.

"what?" he asked, pulling mark off his daze.

"h-huh... nothing." mark replied, his cheeks slightly flushed.

"you just wanted to say what?" donghyuck asked again, taking dangerous steps towards mark.

"y-yeah... good night, i'm... leaving." mark stuttered.

"bye then." donghyuck smiled. "see you around."

"yeah." mark nodded.

donghyuck expected him to leave the room and close the door behind his back, so he turned around and walked back to his dresser. however, he faced the door again after a few seconds when he didn't hear the door closing.

and he was right, because mark was still standing there, his eyes devouring donghyuck's toned chest and back.

"aren't you going to leave?" donghyuck chuckled.

mark flushed bright red at those words, surely because he realised he had been staring at donghyuck for a bit too long for it to look natural. "o-oh, yeah, yeah... s-sorry, bye." he let out confusedly before dashing out of donghyuck's room, almost slamming the door.

donghyuck turned around with a huff.

"fucking awkward." he declared, rolling his eyes. "how could he even get with my sister...?"