I just don't know!
ANDY'S ANSWER: An open condom looks a little bit like a deflated balloon. When it is new in its package, the opening is rolled up to the end for the purpose of easily putting it on to a penis. You just unroll it over an erect penis and it purposely should be baggy at the end to hold any semen. Wikipedia has pictures of a condom, both rolled up and unrolled as well as the history of condoms which were initially developed to protect against disease and only later became popular as a method of birth control. en.wikipedia.org/wiki/Condom