After going undrafted in the 2012 NBA draft, Bost joined the Portland Trail Blazers for the 2012 NBA Summer League. In August 2012, he signed a two-year deal with Budućnost Podgorica of Montenegro. After averaging 9.1 points, 3.3 rebounds, 2.2 assists and 1.1 steals per game in 2012–13, he parted ways with the club.