The Pumpkin King
Veteran XX
I'm sure fucking cosplay girls is no different than 85% of the rest of the female population.
It involves:
1) A little luck
2) A little bit more in the looks department
3) Even more alcohol
Given that these girls are already at a convention and looking to let loose you got #1 on your side. Work very hard on #2 (Remember its a convention...so go all out and don't be yourself think about being as metrosexual as possible for a weekend), and If you can somehow get them drunk or high (Ask them if they wannna get high and watch their favorite anime show...them break out the booze)
You should be straight. I dunno. You would really have to superfan yourself out as an anime character though to get with another super hot superfan dressed as her anime character.
Drugs and alcohol will be your best friend though. Guaranteed.
Why not just poison them... Take them back to your lair and fuck their bodies?