You can be plugging away at the beach.
One of the most erotic things you can do is wear a hot stainless style cock plug under your tiny swimsuit making sure the end of the plug is pushing hard at all times against the spandex fabric. Not everyone will know what is going on there after all not many people know the joys of wearing a penis plug or even that there is such a thing but some people will know and will be highly aroused by it. Yes, highly aroused to be sure but not nearly as aroused as the wearer will be. Wearing a penis plug takes a day at the beach to another worldly level of excitement.
Men’s swimwear and so much more