Okay but what about virgin yoonie who never did anything more than making out & shy touches, and now he's too embarrassed to admit it and gets SO flustered when seokie finds out he's blushing soo hard when he admits that he never even dared fingering himself :(
Seokie can't

believe what he hears but reassures him he'll be gentle and careful with him, bc yoon is his precious little doll and he doesn't wanna hurt him :( makes sure that they only try if yoon is ready, and that he feels safe and relaxed makes him feel loved and precious like he is,

kisses him everywhere and sucks the prettiest marks all over his pale skin- making him squirm because it feels so good and he gets all warm and tingly inside :( he probably would compliment and praise him for everything, would encourage him to let out all those little noises if

he feels good, "you sound so pretty, don't hold back, lemme hear you. it's alright darling, I got you. you're doing so well."
And poor yoonie is very sensitive, it makes him so hard to be touched this gently, and he'd whine so prettily for more :(
seokie would be sooo extra

careful when he stretches him open on long, delicate fingers... kisses and licks his tiny hard dick to distract him from the slight sting at the beginning, and then focuses on his prostate while slowly adding more fingers, until he's 110% it won't hurt him when he fucks him

Poor little yoonie is so overwhelmed and sensitive that he cums the first time as soon as seok has bottomed out but it's totally fine, seokie tells him, gives him time to come down and to adjust completely before he starts moving ever so slightly... And oh god how amazing

yoon feels, he's so so full and it feels so good :( he's freely letting out the most gorgeous moans and whimpers seok has ever heard, asking for more, crying ever so slightly, holding tight onto him :(((
He'd probably fall asleep not even a minute afterwards when they're done,

he's so exhausted and has come so often- but that's totally okay because he's happy and seok cleans him up and cuddles up to him, makes him feel warm and safe even then