Open (2019)

Audra and Bryony don't want to ruin their burgeoning romance with antiquated ideas like labels and commitment. Audra's just discovered that she likes having sex with women, particularly Bryony. But Bryony still likes sleeping with Heather from time to time. So Audra starts regularly hooking up with Henry from work. Meanwhile, Audra just wants Bryony and Bryony just wants Audra.