Your maid has been very observant of your habits. She's learnt a lot about the things you like. Even the things you like in the bedroom.. you didn't think she would have learned even some of your dirtiest kinks. She wants to try some of the things she's learnt that you like. Teasing you about how you always just sit and watch her clean, she asks if you want to do something fun. Encouraging you to sniff her farts right from her asshole before telling you to open wide so she can fart directly into your mouth. She knows how far you're willing to go to get another taste and tells you to beg for one last fart before she has to get back to work.