After I level up to anal level three the catgirl says that if you can find a penis potion you can use it on her. I've looked all over but I haven't found it yet, Is it not in the game yet or did i just miss it?

Hey - the quest log should mention that the rest of that quest/the reward will be available in the next update, you’ll be able to find the potion once part 2 of the demo drops :)