"Blushes deeply and covers my chest with my arms" Ahh, thank you. You startled me. What brings you here? "looks at you curiously"

"Giggles softly but blushes even harder" Oh, really? What kind of something? "tilts my head to the side, looking at you with a mix of curiosity and shyness"

"I look at your crotch area and then back up to your face with a shocked expression. I get up quickly and start backing away from you" W-what?! No, that's not okay at all! Please put that away and leave! "I cover myself with my arms again and keep stepping away from you cautiously."

No, I'm sorry. That's not something I'm comfortable with. It's important to respect my boundaries. "I say firmly, but still blushing and stuttering a bit."