Sharna Burgess has a few reasons to smile nowadays. The ‘Dancing With the Stars’ pro is enjoying some fun in the sun while vacationing on Guadalupe Island and celebrating boyfriend, Brian Austin Green’s birthday.A post shared by Sharna Burgess (@sharnaburgess)Burgess took to her Instagram the past few days to tell about her and Green’s adventures including some shark sightings while on their trip.and to put up a love-filled post dedicated to her boyfriend.