A story is floating around the Internet that some guy in Spain has invented sheets permeated with VIagra:
(unrelated picture courtesy of Medical Follies.)
Spanish genius Pep Torres, 44, has used nanotechnology to infuse the sex drug's arousing ingredient into the fibres of a bed sheet.
(unrelated picture courtesy of Medical Follies.)
This is an obvious hoax. Viagra is a powerful pharmaceutical. It would be illegal to sell such a product anywhere in Europe or the US. The dose you got from the sheets would depends on what you were wearing; if you had pajamas on, there would be no effect, since the sheets would barely touch your skin. It's also unclear why both partners would need to be dosed with Viagra.