[Searching for a Manga] Old Hentai Manga I lost , About a Yonger sister trying to make the older brother's cock her slave.. but ends up reversed

Hi ,

So searching for this manga , for a long time.... I can't find it... Its time i ask

The story was that the Brother was sleeping , and like his dick is uncut (is the word i think they used, not phomiosis)

So the sister enters the room and goes "nice big uncut smelly cock , just the smell makes my panties wet"

And then she sucks his dick cause she wants to now , and then as soon as the brother gets up , its like an instant cum , so he's like "huh how can she be this good at it?" and she's like "haha , Im gonna make your cock my bitch"

and then the brother's like "Well you've been on the top enough , time for me to give you a lesson"

and then he sort of Puts her down , and then she comes out on top and goes "Well turns out im a slave of your cock"

and then at the end , the dude's asleep again , and he wakes up to find she's under the covers again , naked , sucking his dick

No ugly bastard....

So.... if anyone knows ... Please point me to it (god now that i type it out , shit's gross , but please)