In August 2017, Biesmans signed with FA WSL side Bristol City.[13][14] In her first season in the club she made 16 regular season appearances, scoring once. Biesmans extended her Bristol City contract by one year in July 2018.[15] During her second season with the club she started in all 20 regular season games.[16] In May 2019 it was announced that Biesmans was leaving the club.[17]
Biesmans made her senior team debut for the Belgium national team in 2011. She helped the team qualify for its first major tournament, Euro 2017, by scoring two goals. During UEFA Women's Euro 2017 she played in two of the three matches for Belgium. She subsequently helped Belgium in their unsuccessful campaign to qualify for the 2019 FIFA Women's World Cup. Belgium were eliminated in the play-off stage by Switzerland.
At the start of 2022, Biesmans helped Belgium win the Pinatar Cup in Spain for the first time, beating Russia on penalties in the final after a 0-0 draw.[20]
Biesmans featured in Belgium's second appearance at the continental finals, where the Red Flames finished second in UEFA Women's Euro 2022 Group D behind group favourites France, against whom they conceded a narrow defeat (1–2), but ahead of Iceland with a 1-1 draw and Italy, who they edged out 1-0. Belgium lost 1-0 to Sweden in the quarter-finals.[21][22]
On 31 August 2023, Biesmans announced her retirement from international soccer to spend more time with her family.[23]