An obsession with facesitting? Guilty as charged. It doesn't harm anyone does it? Okay, maybe it can get a little uncomfortable at times for the person providing the "seat", but I've always found it worth it.
Here's a little trifecta of pictures which depicts a Domme's approach to applying her pretty privates to her submissive's face.
First, she waits patiently for her boy's arrival. She's instructed him to disrobe and bring a couple of toys with him. He tells her he's ready, but she tells him to wait until she's done reading.
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When she's finally ready, he follows orders, crawling back to her obediently. He gets excited that perhaps she's going to take him out for a walk.
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Instead the poor pet will have to wait. Maybe some other time. Tonight she has something else in mind.
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Photos from Brutal Facesitting.