Thanks for the link but no that's not it.
It was not in flash and had an english transaltion (I'm not sure if it was a fan translation or not). It may have had flash as an origin, but I'm fairly certain it was a custom engine rather than in a flash player.
The gameplay was also nearly cryptic in that there was very little dialog and it mostly just went from scene to scene. You often had to literally wait and do nothing while the girl got bored enough to start something. Other times you needed read her face to know when it was ok to touch or start a new sequence (like moving her shirt, etc)