If you are new to BPs I wouldn't recommend housing 2 snakes together. It can be done, but most new owners that attempt it, fail. Not to say you would, but just a warning.
You will probably have more success with housing them separate. You may want to think about getting a small rack if you would like to attempt breeding someday
If you do decide to house them together, remember that you don't want them competing over the hot spot or the hides or anything. So make sure you double up on everything. Make sure you watch behavior so you can see if one or both are becoming stressed. Feeding time could prove to be tricky as well.
Just some food for thoughtWhatever you decide, good luck!