For event things like the mission you need to walk into them to trigger the special conversation. Interacting with them will only cause the usual thing such as the chat and build. If you aren't sure, you can just walk into him and see if it happens. Thats how it usually works. If this doesn't help then try again after closing the game. If not then I don't know how to help you. As for the double dildo, they are available after talking to the mistress or the blond tamer who you will find in the city after getting a bit further. Edit: I was wrong about the double dildo, it let me buy one for some reason. Probably becouse I had no sheep tamed.
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Hello, please send me the Bug Report ( check above, at the end of the main page how to generate it), it contains the save files. I will be able to help you and maybe fix this for future players aswell
DoubleDildos are unlocked in BagHeads shop (the guy near the mansion, mentioned above), yet it might not be instant, i think there are a few quests before that. Until that point the player was supposed to gather these from crowd npcs by completing their quests (upon accepting a new quest, check it's rewards to see if it's the desired item).
Sorry for the created inconveniences
Cheers