My little sister and I are four and a half years apart.
We shared a room for 16 years and, at the time, hated every minute of it. We tried everything to have our own separate spaces. Did the bunk bed thing and took them apart more times than I can remember. Duck taped down the middle of the room so we each had separate halves (didn't really work).
I guess it didn't really hit me that I would miss sharing that tiny room until I moved out and got married. I missed sharing that room with her. I would miss all the fun times we had in that room. Like making a hammock on the side of the bunk bed (BAD IDEA!!!). Putting stuffed animals on the fan and seeing how far they would fly. Convincing our brother to jump off the bunk bed (another bad idea). All the bad ideas we had that were turned into fun memories.
Now, we're all grown up (well almost). She's leaving for the Navy and I couldn't be prouder of her. Yeah, we have had our bad times as all sisters do but through it all she has always been one of my best friends. 
