It seems like in version 0.385 (or a little earlier) you could complete a part of Gertrude's quest line (after the last sex scene, the developer wrote that the quests ended there). But there were no pixies. Now there are pixies, but there is no Gertrude's quest.
Next. You can catch and fuck a pixie without completing any quests, just having access to the jungle. (Instructions on how to do this are on page 78, I think.)
About the pixel crap. This genre of games, when pixel crap is mixed with 3D scenes, if I'm not mistaken, is called RPGM. Personally, the pixel crap didn't bother me. Once you get used to it.