Well, that's "not influencing his decision" ... for some value of "not".
Congratulations to PerfessorN, you managed to write a porn story
1. Without getting repetitious, and
2. With some real plot.
The first is rather difficult... there are only so many different sex acts and so many different positions. by the time you reach 17 chapters, it's real easy to be writing about the same things over and over, with the only variation being which synonyms you use for the body parts.
The second probably isn't all _that_ hard, but it's rarer than it should be, IMHO. And without plot, you are almost guaranteed to get repetitious.
Poor Won Won and Lav Lav, though.