"Jahn, was it you or Jenny that chose this beach?" Jen did, why?" Snickering, very soft but audible, came from the driver, and he looked askance at he...r."There are naked people here... ," realization dawning on her, Fiona continued in scandalized tones, "Bitch! This is a nude beach!" Ahem. 'Clothing-optional," her sister corrected her. "There is absolutely no requirement for wimpy people to go without suits."In the rearview mirror, Jahn could see Fiona shooting a glare of death at the back of. .. the 'Frenum'?”“Sure I did but I didn't tell you that to get you to... well you know.” I said truthfully.Grinning, she replied, “Oh, I know that. I just wanted to find out what makes it grow like that. That's all. Why? Am I doing it wrong?”“Wrong?” I was flustered. I counted to ten. The whole time I did, Gwen kept sliding away. Trying to remain calm I said...“Trust me, you're not doing it wrong.”Disbelievingly, she said, “Really? Are you sure? It doesn't seem to be getting any. My dad went to the office and brought back a kit to take various samples from me; blood, urine, sweat, hair, saliva, anything they could think of. Mom took samples from herself and Abigail for a sensitive pregnancy test.The next day was Saturday. We all sat down for a family conference. Dad announced that the pregnancy tests came back positive. Abigail and Mom didn't react at all. They'd already been through their angst. I think they both instinctively knew impregnation had occurred very soon. We were at their house, with their parents gone, when Cathy decided and insisted we play "Spin the Bottle". It was kind of senseless, and involved a lot of do-overs. I wasn't going to kiss my own sister, and I certainly wasn't going to kiss Stan. When the girl I was ready to kiss decided to take over the spinning, the bottle pointed at my sister.Stan and I watched as our sisters rose up on their knees and leaned in for a sexy little kiss. I know I got even harder, and I doubt Stan was any.