One might say that it is behavior leading another to believe that sexual intimacy is possible, while preventing that possibility from becoming a certainty. In other words, flirting is a promise of sexual intercourse without a guarantee.
 Milan Kundera, The Unbearable Lightness of Being (1984). copy citation

add
Author Milan Kundera
Source The Unbearable Lightness of Being
Topic intimacy behavior
Date 1984
Language English
Reference
Note Translated by Michael Henry Heim
Weblink