I am an erotic hypnotist. I use my abilities in hypnosis to help unlock a mind that isn’t at its full capacity. It could be to remove the roadblocks that limit one's performance (such as gag reflex, inability to maintain erections, making "hard limits" more flexible, more complete submission, slavetraining, etc) OR exploring one's ultimate fantasy in their mind, or any combination of these. By opening the mind, the body is better able to perform.
The subject is gently "induced" (lead into a trance-like state, where the mind is more receptive of new ideas). After the subject is relaxed and responsive, new ideas are implanted in the subconscious and tested. Further "suggestions" may be implanted at this most opportune time, before the subject is brought back to full awareness.
While some desire only one session, results are often multiplied with follow-up sessions. Others will just add sessions to either add new topics or just for the pure relaxation and/or fun of the session.