"Freud was particularly interested in the body and how it related to different aspects of our sexual growth. Anybody familiar with the first stage?" I ask my captive audience. All the way in the back, Marcus responds before I can call on anybody. "Oral," he smirks. "It's based on the...pleasure principle." I feel my nipples harden. Being a traveling lecturer wasn't always my dream, per se, it kind of just fell into my lap. It was difficult at times,...