Not that impressive.
It was an interesting idea with lots of potential, you just didn't seem to execute very well. While the art was actually fairly decent, the voices just didn't seem into their roles. Just sounded like some guys reading of a scrap of paper without any enthusiasm. The only one I can't speak for was nakoruru, the voice of April, as I could barely hear her.
Now as to the sex scene. No I wasn't offended, it was an M rated flash after all, it just went on too long, and seemed very pointless. At one moment I started to wonder if the video had just randomly ended and was stuck in a loop. If it had been much shorter it would have gotten a decent laugh and the overall quality of the flash would have went up, but it was just out of place and too long.
That's all I have. Keep working as you do have a lot of potential to make something good. It shows in your art and the core of your ideas.