chrusti wrote...
It was a brother and his sis, and they were at home, she came into his bed.
And they were playing around while they heard their mother outside.
The whole thing was just happening in that room.
Any ideas? thanks!
I believe it [i]may be[/b] "Honeymoon" chapter 1, which is in the "Immature mama" tankoubon: https://www.fakku.net/viewonline.php?id=1496#page=120