Knot Simply Friends

Fenna's perfectly happy to live with her best friend Britt for the rest of her life, just the two of them, until she reunites with Nick, her older brother's best friend, which changes everything.

Omega Fenna's been living with her best friend (with many, many benefits), Beta Britt, for over a decade. The two have always been inseparable, from when they met as kids, and it's no different now they're adults. Even though Fenna knows that Britt is her scent match, no matter how hard she tries to deny it. 
But with Fenna's ongoing health issues, the doctor has advised her to search for a mate to bond with to help her steady her heats.
And who does she find on the Heat Seekers app but Alpha Nick, previously the high school's most desired himbo and still Fenna's older brother's best friend, who she's not seen in two decades. Not since his family moved away in shame after his sister broke off her wedding to her childhood sweetheart just days before the big day.

With Nick in the picture, Fenna has to confront many things about her life, including that she's known Britt is her scent match for a long time.
Fenna has to face that the people she loves the most in the world are Knot Simply Friends.

What to expect:
MF and FF Omegaverse (Britt and Nick are only interested in Fenna, not each other)
Characters in their mid-30s
Headstrong Omega
Lovely and way too patient Beta
Himbo Alpha who's a full-time manny and part-time petting zoo volunteer (of the cute animal variety, get your mind out of the gutter)
Best-friends-to-lovers-to-mates
Older brother's best friend

Knot Simply Friends is a book in the Heat Seekers Omegaverse, a shared world series featuring an amazing group of omegaverse authors all centered around an app that omegas use to find partners for their heats. All books can be read as standalones, but you'll find lots of character crossovers in the series.