a vanilla kiss i would imagine wouldn't cause you to want to be taken, absorbed into his being, to be passionately and lustfully devoured.
A vanilla kiss wouldn't cause you to have tingles all though your body or begin you on the process of a long boiling sensation.
a vanilla kiss merely shows you a calm almost unconcerned kiss that is barely more than a handshake or a kiss from family. It's very far removed and unrelated to what i would do for you. < WEG > smiles
I think an unvanilla kiss would ignite the fires and kick the tires of your deepest most darkest desires to make you act.