All people think that sexual immorality is only about facts and they do not see that what is in the mind is also part of it.

Flirting is just letting the other person know through actions or words that you feel attracted to, when you flirt with another person that does not even attract you or you like it can be quite fun, but this act is also part of the sexual immorality, is not a harmless habit, that is easy for nothing makes it a good thing, it is harmful and can make you become a selfish being.

It is not right to make that person believe that you like it when in reality it is not like that, it is a great lack of consideration to the feelings of that other person, which could end up breaking heart.