What's the Name of That Book??? discussion

I want to say I read this book around 2009? But it was not a new book, I got it from a garage sale. Maybe published in the early 90s or early 2000s?

The story is told from the perspective of the main female character, who has been in love with a man she has known since childhood named Trevor. She goes to a self-defence class and is a part of the first demonstration with the instructor, but she was so taken in by the instructor's good looks that she didn't listen to the instructions so instead of doing the move she was supposed to, she ends up giving the instructor a bloody nose. They start dating, and they do end up engaged.
This book is written for older adults as there are a couple of sex scenes. Eventually, the main character breaks off the engagement with the self-defence instructor and marries Trevor.
The main character also lives with her brother (who I believe is named Matt) and the house they live in has a very small water tank.
There is also one scene where the main character has the opportunity to have sex with Trevor and they are both naked, but Trevor's parents' dog is sick and throws up so Trevor has to go to the vets with his parents. The main character is hiding in a closet and when she thinks the coast is clear she comes out of the closet and steps in the puke.
I distinctly remember sex with Trevor being compared to a full-blown Thanksgiving meal or something along those lines.

I read a physical copy in English, and I think the cover had two sets of feet on it (one male, one female) with a dog sitting between them. The story is set in America.

I think it might be Just One Of The Guys by Kristan Higgins. In the blurb it says she meets a "hunky doctor" but I can vaguely remember something about a self defense course or something like that...

EDIT:

From one of the reviewers:

"...Eventually Chastity meets Ryan Darling, M.D., (a/k/a "Dr. Perfect") while attending a self-defense class that he teaches for women (he is also a karate black belt). Dr. Perfect, impressed with Chastity's sparring abilities, attempts to demonstrate a chokehold on Chastity. Too bad Chastity's body reacts faster than her brain - she knees Dr. Darling. HARD. Possibly affecting his ability to father their future children. .."

Nela wrote: "I think it might be Just One Of The Guys by Kristan Higgins. In the blurb it says she meets a "hunky doctor" but I can vaguely remember something about a self defense..."

This is it, thank you!!!

No problem :)