Kissing ratio

The Kiss Quotient is a battle of love and logic from the very first pages that will entertain and mesmerize the reader. This New Adult book was the American author's debut, but it quickly became a bestseller in the US, and then worldwide. Stella Lane has everything a modern woman desires at thirty — she is independent, successful, well-off, and beautiful. Only her personal relationships haven't worked out. The obstacle is not so much her autism spectrum disorder as her conviction that the most important thing in life is the queen of sciences, Mathematics. And only it unites all living things. And love and sexuality are equations with all unknowns that she had no desire to solve... Until recently.
When Stella realizes that physical pleasures are passing her by, she solves this problem in her usual way, betting on logic and a thirst for knowledge. So for "practical lessons," she hires a "tutor" — the handsome Michael from the escort service. Because who knows how to do it best? Right, a professional!