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At first, the idea of licking another human being might sound strange, but we’re not suggesting you bathe your partner with your tongue.
Licking
Though some people might find that arousing, most everyone else will be turned off. Instead, as your kissing your partner’s body with deep, open-mouth kisses, use your tongue a bit as you do so to further stimulate your partner’s skin.
Also, try tracing a line on your partner’s body, from the navel down to the pubic bone, with just the tip of your tongue to excite them.
