Hello, please help me find the name of this oneshot/ h-manga chapter. It's about a boy or girl bragging about having a partner, then need help of the sibling to pose as the lover at the group date. I think there are only 4 people at the karaoke room. At first, the true couple is suspecting the fake couple, because they are nervous, so they ask the fake couple to kiss, to prove they are really together. The siblings pass the test, then got carried away, and are going all the way.

... This was scanslated quite recently. I remember it quite clearly. I'd suggest hopping over to , for example, Fakku, and searching the releases tagged with incest tag. I think you'll find it quite fast.

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Thank you, I found it thanks to your tip. For the record, it is My Girlfriend just for Today from Tsubaki Jushirou.

Insert a hentai-flavor "give the man a fish ...." -joke.

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