Looking for the name of a sex game that I used to have

File: Lets_meow_meow.jpg (22KB, 250x187px) Image search: [Google]

22KB, 250x187px

The picture is not of the game that I am talking about. Here's what I remember of it.

Flash game
It revolved around a week in your life, with each day you are seducing your sister, little by little.
You use the mouse to control your actions, like how roughly/softly you lift your sister's dress, spread her pussy, etc.
At the beginning, you try playing with her while you are sleep, and you can jack off on her while she sleeps.
Depending on your actions (rough/gentle, cum in her/pull out), you unlock different positions/scenarios.
There was a cheat code to unlock everything by clicking on a letter of either the programmers name, or the title itself on the title screen.
Oh, and if you go to hard at some points, it could actually fuck up your game.