Go here: http://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_by_National_Pok%C3%A9dex_number
and open up a word document. List every Pokémon you would ever seriously consider having sex with and then hit the "word count" button to get the total number of Pokémon.
What is your number and the percentage?
Mine is 65/655 ~ 9.2% of all known Pokémon.
Rankings by # of Pokémon:
0-9 = Quite normal
10-19 = Novice Poképhilliac
20-29 = Pokémon Master ifyouknowwhatimean.jpg
30-39 = Kinda creepy
40-49 = Approaching "Ashchu Adventures" levels of perversion
50+ = Mother of Arceus, you need to get laid, like NOW!
Edit* Anthro is allowed, Ginjenka isn't.
Updated by Eevee-E