Slave candy used the forbidden phrase, "I want." Naked on her knees she takes a bar of soap in her mouth. She holds it there for a minute, then has the soap moved around and scraped over her teeth to make sure she has the full effect. She is to hold the soap another minute or two. When she looks like she is fully, her master removes the soap and replaces it with cock. The soap flavor makes her gag and spit in a nice POV shot.