Love at 1st sight or slow road to adoration?

When a new model debuts, is it love at first sight for you (clothed or naked) or do you slowly build adoration for a model.

personally, it is usually love at first sight and i just can't get enough of a new model, but lately, many of the girls that i immediately adore, i lose interest rather quickly. also, there are some girls that i did not enjoy when they debuted, but now, i find myself paying more attention than i previously thought i would. what is it for you?