Lie to May

You shook your head. "Of course not. But that line of thought caused me to think about what it sounded like you thought I was going to do when I first caught you, and then for just a moment I imagined doing... that sort of thing, with the ralts after it evolved..." You trailed off and let May see the implication herself.

"Eww!" May shoved you. "You looked at a cute little thing like that and that's what came to your mind?"

"Hey, I was picturing a gardevoir!" You defended yourself. "Obviously I wouldn't do something like that with a ralts, but the thought came to mind given what we were talking about."

May huffed, crossing her arms and looking away. "Pervert."

You sighed, but could tell this wasn't an argument you were going to win, and at least she seemed to have believed you.