As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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Raj from the Big Bang Theory is married to Miss India.
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When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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Historically, sweat has been an active ingredient in perfume and love potions.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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