An addendum to my last:
I don't just mean a deep breath like you might be thinking at first glance.
I mean a breath so deep and full of love for the act that you feel like you have spent your life drowning and this breath is your first true breath of life. To pull that breath in so deep and so greedily that your stomach aches for the sweetness of its mingling in your lungs just as when you've run your heart to the breaking point and each gasp feels like it can't come fast enough...that is it.