Let's get something straight here. Akane Tendo is not sexy. There is nothing sexy about her.
Ranma hates that she hits him—or rather, that she can't hit. He hates that she thinks she's a martial artist. He hates that she can't cook, but she's too stupid to give up or realize she's never going to be as good as the other girls. He hates that she always cries at the stupidest things and she always blames him for them.
Ranma hates her smile. No, scratch that. He hates the way her smile makes him all hot and flustered. What's that all about?
He hates that she has a good relationship with her family members, that she's popular in school and she doesn't even have to try, that people always want her to do sports even though she's so damn clumsy. He hates that the other boys at school are so easy to admit their love for her.
But Ranma especially hates how compassionate she is. She's kind to nearly everyone, including his sworn enemies or the people who kidnap her. He hates that his enemies a lot of the times become her friends. Even when they try to force marriage onto her, she'll still be kind to them.
They say that one could be killed with kindness, and Ranma has to agree. Akane's kindness toward others is killing him.
He hates the way she prances around all the time in her stupid short skirts showing legleglegs for every man in Nerima to admire them. He hates how even though she's a stupid tomboy, she wears dresses and skirts like she's waiting for a real man to come by and notice her. And even though Ukyo and Shampoo dress better than her, it's Akane that the guys go gaga for.
"Ranma? Hello, earth to Ranma!"
He snaps out of his daze and remembers he accompanied Akane to the grocery store. On her tiptoes, Akane extends her arm up, trying to reach the bag of flour on the top shelf. In doing so, Ranma can't help but notice her already-short skirt is raised a few inches. "I can't get the flour. Get it for me, yeah?" she asks him.
Determined not to look at her bright eyes with an expectant gaze, her lips turned into a somewhat cute pout, and especially her uncovered legs, Ranma gulps and walks towards Akane.
Yeah. Definitely not sexy.