Chapter 6494 My Brother's Crazy Obsession(Incest/Taboo Sex):>Ep18

"I know, and look how amazing it still was!" He was still confused. "Look," she said, "good sex is not just about actual physical act of intercourse. While guys do usually require direct physical stimulation, girls can be deeply stimulated by the situation, the romance, the emotions—and most importantly being comfortable with a lover."
Greg stared at her, and she nodded.
"Yes," she said. "I'm very comfortable with you. I mean, look at us now." She pulled back a little and gestured to her own nudity. She went on. "It turned me on to expose myself to you. I hadn't expected that to happen, but it did. And then when we started touching ourselves in front of each other..."