"Perry's true Love" was one of my beginner fanfics, so it wasn't too good in the beginning chapters, but the later chapters got longers. It was published on July, 2009 and finished in 2010 (due to my long absence)
http://www.fanfiction.net/s/5253248/1/Perrys_true_love
It is about Perry meeting Vanessa's new pet Platypus, Ginny, and falling in love with her and he cannot get her out of his mind.