Years ago I was running around with a girl, we were 20. She was kinda fun but not really into sex. Average looking.
We went to a nude beach about an hour drive away. She(we) were hesitant to get naked, she finally took her top off. We were just chillin looking at naked people, most weren't good looking. A gay(guys) couple sat near us. They were cool and friendly. The minute they got naked my girl slipped off her bottoms and wanted me to get naked. The guys were fun to chat with, my girl couldn't stop looking at them. They told us that people walked to the end of the beach to mess around. All four of us walked along the water to the end of the beach. There was a guy fucking his gal from behind against a rock. We all watched. My girl wanted to fuck like they did. I'd never herd her ever talk about anything like this. I fucked her while the guys watched. She was so damn turned on we had sex for hours when we got home, that was a first.