The Consistency Principle

After reading your book, i have now figured out what happened. The reason this tactic worked so effectively is because once small commitments have been made, in this case, giving a kiss, people tend to add justifications to support the commitment and then are willing to commit themselves further. In this situation, i justified complying with the second request because it was consistent with my initial action. If i had only listened to my stomach signs, i could have saved myself a lot of humiliation by extracting a kiss.