Use reasoning to lead to the answer of the following question:
James and Judy are preparing to copulate. In order to ensure that things go smoothly, they engage in foreplay. What might they start by doing?\nOptions:\n- kiss\n- lubricate\n- sleep\n- procreation\n- sexual release
 Reasoning process:
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Kissing is the act of caressing with one's lips. Foreplay is a sexual activity that precedes intercourse. Caressing with lips is sexual. Therefore, the final answer is kiss.
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