[M4F] Porn has ruined you, my gooner sister and the perverse relationship we begin

I am 18+ and all players and characters are 18+
You play as my porn addicted sister, constantly horny and senselessly touching yourself in the female goon cave you call a bedroom, losing yourself to the addiction more with each day.

The first time is an accident, maybe you're passing by my room at night and see me passed out on my bed, a tent of blankets at my waist. Whatever the trigger, your mind begins to be consumed by the idea there is a mouth watering cock only a few feet from you at all times, with only the small taboo of incest to stop you from having it constantly. You valiantly fight the temptation, which is why the following night you find yourself crawling under the covers up between my legs towards the tent in the blankets. It may have been a mistake to go this way, because by the time you reach my thighs you're feeling lightheaded from breathing in my musk and it only gets worse the closer you get.

Next thing you know you're drowsily waking up, your face pressed against hot and fleshy shapes dripping with your drool. You had passed out facefirst onto my balls, inhaling the heavy scent of my musk and mindlessly suckling on them for who knows how long while I slept obliviously on. That was the final key to finish your obsession with my cock, and the next day is a battle of wills for you as you become desperate for another faceful of your brother's balls, and more

Thanks for reading! I'm looking for a particular dynamic in this roleplay, namely a porn addicted, gooner sister getting her eyes set on her brother's hung cock and balls, and the brother doing his best to resist her, then reluctantly giving in, then gradually taking advantage of her obsession to make her into an eager, worshipping fleshlight, all with their parents having no idea.

my limits are toilet play and gore,

kinks are anything like huge cocks, cumplay, cum addiction, musk addiction, spit play, sloppy blowjobs, humiliation, degrading, mind break, teasing, seducing, public, sneaking, facefucking, casual use, outfit control, objectifying, being worshipped, breaking minds, corruption, verbal abuse, etc!