Knot Just Six by E. Vivienne Woods

Adeline Timmerson is very good at holding other people together.

As the personal assistant and closest friend of one of the world’s most famous omegas, she knows how to manage a crisis, protect a reputation, and keep anything inconvenient tucked neatly out of sight. Especially her own wants and needs.
But her heat has been suppressed for too long, and pretending she can handle it alone is no longer an option. Pushed toward a choice she does not feel ready to make, Adeline goes looking for someone safe enough to help her through it, without calling in the professionals.

Then she meets Pack Xerxes.
They are careful, devastatingly competent, and far too good at making Adeline their focus. With them, she feels safe, wanted, and seen, until she learns what they do for work.

Heat support work: elite, exclusive, highly trained, and expensive enough to expose the lies that sex work isn’t real work and care is simple.
Adeline knows what she needs from a pack. But asking means risking that Pack Xerxes may choose the work they built their lives around, while Pack Xerxes must confront what that work has cost them.

An extra-spicy why-choose omegaverse romance with professional heat support, scent-match intensity, consent-forward MM/MF/group intimacy, caretaking, and choosing the whole person, imperfections and all.