Set up email accounts using aliases. Squeeze your pelvic floor muscles around something or someone. Use silicone lube and get it on in the shower.
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Figure out a new sex position using pillows. Men Reveal the Surprising Truth. What Makes a Woman 'Wife Material': Write down some fantasies and put them in a hat.
Give each other head rubs. Try warming it in the microwave for five seconds for warmer, happier times. Unless, of course, awkward turns you on.