The only unnatural sex act is that which you cannot perform.
source: - Quoted in Barbara Rowes, The Book of Quotes (1979)

source: - Alfred C. Kinsey (1998). “Sexual Behavior in the Human Male”, p.4, Indiana University Press
source: - Sexual Behavior in the Human Male ch. 21 (1948)
Topics: Two, White, Black, Lgbt Pride, Continuum
Only the human mind invents categories and tries to force facts into separated pigeonholes.
source: - Sexual Behavior in the Human Male ch. 21 (1948)
Topics: Mind, Trying, Facts, Lgbt Pride, Taxonomy
source: - Alfred C. Kinsey, Wardell B. Pomeroy, Clyde E. Martin, Paul H. Gebhard (1998). “Sexual Behavior in the Human Female”, p.195, Indiana University Press
Topics: Expression, Immature, Immaturity, Disturbance, Psychopathic
The heterosexuality or homosexuality of many individuals is not an all-or-none proposition.
Topics: Heterosexuality, Individual, Homosexuality, Heterosexuality Is
Cheese crumbs spread before a pair of copulating rats will distract the female but not the male.
source: - "Orgasm Trivia". TED Talk, www.motherjones.com. May 29, 2009.
We are the recorders and reporters of facts - not the judges of the behaviors we describe.
source: - Alfred C. Kinsey (1998). “Sexual Behavior in the Human Male”, p.660, Indiana University Press
Topics: Sex, Opposites, Culture, Ancient Greece
source: - "Sexual Behaviour in the Human Male". Book by Alfred Kinsey, 1948.
Topics: Sex, Honesty, Ignorance, Intellectual Honesty, Despondent
source: - Alfred C. Kinsey (1998). “Sexual Behavior in the Human Male”, p.545, Indiana University Press