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i am guessing it isn't the same shape so it is more appealing to the eye, and not all gross looking like the real human heart,

Actually if you see at Valentines the heart refers to the lips. Kissing is the shape of the lips, and the lips is used for kissing. Our Lips has become the symbol image for love because kissing is what we use our lips for. Kissing is the actual bond to true love between a couple rather than sex.

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13y ago

What else can I help you with?