You should not use this information as self-diagnosis or for treating a health problem or disease. Some couples use a dildo a with suction cup to engage in a bit of technological exhibitionism and voyeurism, using video chat during masturbation while their lover appreciates the very sexy view. Finished with a pair of bulging balls, grind against them in play for external sensations or use as a helpful handle. And we’re definitely not complaining.
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And if your suction cup toy is made of silicone, then you should stay away from silicone-based lube. I vibration is just right for this i feel. It gives me a very ‘full’ feeling which i love.