I have the GV sailor soft pack and i have used it for penetration with my girlfriend. You a condom that isnt pre lubed, but make sure to put ur own lub on it. It is flimsy so you have to sort of guild it in, but once its in you should be fine. My girlfriend really likes it compared to others we have used that were actually meant for penetration. I recomend getting the longer one for sexual penetration and then using the shorter one as a packer. Oh, and don't forget to wash it afterwards and dry it well. Good luck =]