Activities that amount to “obtaining a sexual service for consideration”, if a person pays for them, include: sexual intercourse; masturbation; oral sex; lap-dancing, which involves sitting in a person’s lap and simulating sexual intercourse; and, sado-masochistic activities, provided that the acts can be considered to be sexually stimulating or gratifying.
http://dictionary.cambridge.org/dictionary/english/include
include
verb
to contain something as a part of something else, or to make something part of something else:
"My sexual activities yesterday INCLUDE masturbating twice, once at 10 AM & once at 8 PM." That was the *complete list* of my sexual activities yesterday, not a partial list, not just *examples* of a larger list.

