It was probably released for Comiket 51, but not confirmed somehow.

Is that a poliwag in your panties, or are yo- oh, that actually is a poliwag in your panties....

Base +6

RE:elgringo

If it was winter of 1997 it should be C51 (If this was published in Comiket). Dang, Pokemon season 1 (Indigo League) was 17 years ago...

Released in 1997, which makes this Doujinshi one of the earliest porn for Pokemon: animated series...I guess even before the internet boom, rule 34∞ (Eventually, EVERYTHING will be porn.) was already working...man humans amazing...

Base +10, Koldstone Tha King +4, newguy2012a +10

1997, wow. This h doujin is fills very old. And tklh27, Rule 34 came into existence around 1999. It peaked in 2005.

Base +6

Holy crap.

Okay, this comic deserves a glance, even if only for Image 09.

That image of a Bulbasaur flying at its victim with foreboding undershading, a huge uncut cock out, and THAT expression on its face...

I couldn't help myself. I laughed my ass off.

Base +8

https://www.doujinshi.org/book/76476/

Base +50

Goddamnit, Ash ruined the Misty x Pikachu part!

Base +6