In November 2018, Bourne signed a
National Letter of Intent to play
college basketball for the
University of Nebraska–Lincoln. She moved to the United States in 2019 to join the
Cornhuskers. As a freshman in
2019–20, Bourne played all 30 games for the Cornhuskers and averaged 5.9 points and 4.4 rebounds per game. She closed her first season with a season-high 16 points and a career-high five blocks against
Michigan in the
Big Ten Tournament on 5 March 2020. She added six rebounds, an assist and a steal in a season-high 29 minutes against the Wolverines. The
COVID-19 pandemic ended her season prematurely, as she expedited her return to Australia in March 2020 due to border closers. She completed online classes from Australia. As a sophomore in
2020–21, Bourne played in 22 games with 21 starts, averaging 13.6 points, 7.5 rebounds and 2.5 assists per game. She missed four games mid-season with an ankle injury. She scored a season-high-tying 22 points against
Purdue on 23 December 2020. She had 21 points and a career-high 17 rebounds against
Northwestern on 17 February and a season-high-tying 22 points to go with 11 rebounds against
Penn State on 21 February. She was subsequently named
Big Ten Conference Player of the Week for the first time and went on to earn honorable mention All-Big Ten accolades. As a senior in
2022–23, Bourne earned honorable mention All-Big Ten accolades for the third time after averaging 12.6 points and 6.7 rebounds per game. She scored double digits in 21 of 30 games, including three 20-point games. She also produced six double-digit rebound contests, including five double-doubles. She had a season-high 21 points in the season opener and matched that with another 21-point game in February 2023. She finished her four-year career with 115 games and 82 starts. She finished No. 21 on Nebraska's all-time scoring list 1,221 points and No. 15 on the Husker career rebounding chart with 648 boards. She became one of only 14 players in school history to reach the combined career milestones of 1,200 points and 600 rebounds. She served as the team's co-captain as a sophomore, junior and senior. ==Professional career==