Robert Boyle was a very pious gentlemen natural philosopher of the seventeenth century. Thus, I assure you that the following passage is not intended to be in any way naughty, and Boyle would probably have been very upset that someone would read sexual overtones into it. That said, read it for yourself.
"He related how that ingenious Gentleman Otto Gericke, Conful of Magdeburg, had lately practiced in Germany a way of emptying Glafs Veffels, by fucking out the Ayr at the mouth of the Veffel, plung’d underwater; And you may remember alfo that I expreff’d my felf much delighted with this Experiment, fince thereby the great force of the external Air (either rufhing in at the open’d Orifice of the empty’d Veffel, or violently forcing up the Water into it) was rendred more obvious and confpicuous, than in any Experiment that I had formerly feen." From the New Experiments Physico-Mechanical Touching Upon the Spring of the Air, by Robert Boyle, 1660, page 5
"He related how that ingenious Gentleman Otto Gericke, Conful of Magdeburg, had lately practiced in Germany a way of emptying Glafs Veffels, by fucking out the Ayr at the mouth of the Veffel, plung’d underwater; And you may remember alfo that I expreff’d my felf much delighted with this Experiment, fince thereby the great force of the external Air (either rufhing in at the open’d Orifice of the empty’d Veffel, or violently forcing up the Water into it) was rendred more obvious and confpicuous, than in any Experiment that I had formerly feen." From the New Experiments Physico-Mechanical Touching Upon the Spring of the Air, by Robert Boyle, 1660, page 5