Who has got amateur snapchat girls? Dropbox link?

hi does anyone here know how to download snapchat contents of girls
i have got some girls snapchat usernames and i would like to see what theses girls have on there snapchats.
so does anyone know how to download snapchat contents with only the snapchat username with maybe a software to download the contents. or if i post the snapchat usernames of the girls then could someone here download the contents of them if anyone knows how to do that.