Your friend is prepared with questions to prove her points. She cannot come up with many questions to prove her point.
When you see, people trying to say sex with anybody will end up comparing themselves with animals.
Culture i.e. the way the one is brought up. Her ideas, thoughts, other behavioral related aspects totally rely on what the individual is experiencing in her childhood lets say between 10 to 15. The reflection will be seen on the individual between 16 and 22.
Some people say sex is science. I agree but there are factors that trigger the hormones. I have no extras chars left now to discuss it here.
I will go with the author. There is no fulfilled sex with out a relationship. Relationship is wonderful thing. People who have experienced it will never say sex is like eating, sleeping etc.
LOVE and SEX are different. People who are immature will get confused between these two.
