Welcome to Long Live the Sex Scene , a special project by Cosmopolitan that explores why these steamy television and movie moments truly matter, especially right now. Join us as we rewind, replay, and then rewind them all over again.

Compiling a list of the best movie sex scenes of all time is a daunting task. There are countless options to choose from and everyone’s definition of a great sex scene is different. To some, there must be yearning. Others want nudity. Others prefer a little kink. Basically, there are lots of criteria that make a scene great.

Just because there’s nudity, for example, doesn’t mean it’s hot, especially if it’s completely lacking in romance, or passion, or the lead actors don’t have chemistry. As such, we decided to get really scientific. We not only made a

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