Humans had erogenous zones, that was a given, and for some of them that included the ears - but there wasn't an elf alive who wasn't affected when something was done to their ears.
But Bernard, even by elf standards, had sensitive ears; normally he had the benefit of them being covered by his hair, but under the circumstances his only method of defense was gone.
"Yeah, really," Bernard replied breathily, head tilting left as she slid her fingers over his ear; his eyes fell shut as he tried to answer her question while suppressing another moan, "It - it, uh. Geez. Ah, Winter, it does things to elves. The ear thing. It - gnh."
The last bit was an odd little sound that came from his throat, something inarticulate and slightly tortured; part of him was concerned that Winter was unaware of precisely what she was doing right then, that maybe she thought it was completely innocent when it was, in fact, the very opposite.
Of course, then she leaned in and brought her mouth to his ear and Bernard knew that she had to be aware. One hand slid to her shoulder, the other remaining in her hair as she kissed along the ridges, a feeling that was almost torturous; emboldened by Winter's actions, he slid his hand from her shoulder, across to her collarbone, and then down to her chest, gently cupping one of her breasts, his thumb stroking over her nipple though the material of her shirt.