□eyond □hei□ individual success□ Jessica and Krystal have also c□l□□bo□at□d on□□arious □□ojects to□e□her.□From ph□toshoots a□d□□□gazi□e cover□ to realit□ TV s□ows an□ charity □vents, the sis□□r□ have p□o□en th□t they are a □orce to be reckoned wi□□ □h□n they joi□ forces. Their s□a□e□ v□sio□ □nd mutual r□spect for each other□s talents have only strengthen□d their□bon□ □ver the ye□rs.