He collects butterflies and seems to have a sexual obsession with them.

In the midst of the thoughts, the sexual obsessions may seem real.

People with sexual obsessions may, however, need a longer and more aggressive course of treatment.

Following a false start, their tale of sexual obsession is finally ready for the stage.

The patient also has a strange, almost sexual, obsession with the hypnotist.

Love, at that time in life, is nothing but sexual obsession.

"I've never actually had a relationship based on sexual obsession, either."

"So what do you usually base your relationships on, if not sexual obsession?"

"Are you by any chance trying to tell me that our relationship has progressed beyond the point of sexual obsession?"