| 31. | When the sexual stimulation ends, cyclic GMP stops being produced and PDE5 takes over, destroying the left-over chemical.
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| 32. | Add a little old-fashioned sexual stimulation.
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| 33. | The man receiving fellatio receives direct sexual stimulation, while his partner may derive satisfaction from giving him pleasure.
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| 34. | Its proponents stress the beauty of long labia and their positive role in sexual stimulation of both partners.
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| 35. | It is commonly believed that these piercings, and all genital piercings, provide added sexual stimulation to the genitals.
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| 36. | It can be therefore concluded that the thighs are an area that can cause sexual stimulation when touched.
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| 37. | Priapism is a painful erection that occurs for several hours and occurs in the absence of sexual stimulation.
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| 38. | A related modern device, known as a violet wand, is used by some as a sexual stimulation device.
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| 39. | These parts have a shared vasculature and nerve supply and during sexual stimulation respond as a unit ".
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| 40. | The drug does not cause erections on its own, and without sexual stimulation, there should be no erection.
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