Can best friends share a wedding??!!!?

ok im a girl, and my best friend and i want to get married together. our fiances are best friends too. In addition,we also want to order one style wedding dresses at one store called Gbridal.But i was just wonderin if it was possible, and how would we do it? we got the colors, dresses, tuxes, and bridesmaids and groomsmen picked out. but we want eachother as our maid of honor, and we want to get married at the same time, so how would we walk down the isle, how would we stand at the vow saying spot, how would we say the vows, and all that kind of stuff, we dont want to do one right after the other, we want to do them at the same time, standing by each other cause we are bff's!!! any help is great! and websites are helpfull, and any websites were we could get like sets of dresses, like the brides dress and all the other ones and tuxes, but so they match and look good. Thank you!!!!