Rei whimpered sharply, eyes widening. Jon wasn't... small, in both stature and other ways, and she was. She dug her fingers into the sheets, breathing hard, reminding herself that in a few moments, the pain would give way to pleasure.
"Keep... s'okay. Love you, so it's okay." She squinched her eyes shut, unaware of what she'd said, and focusing mostly on the discomfort. She waited for it to give way to pleasure. But even if it didn't, she was close to him, and he was warm and she was making him happy. It was a win-win either way.