Will and I talked some during dinner, but I kept watching Mark and Dee. She was flirting hard with him. I noticed their hands were under the table. I ...magined Mark had his hand under her skirt while Dee was rubbing Mark’s crotch. Some of my suspicions were confirmed when Mark got up to use the bathroom, he tried to hide his erection, but I could tell he was hard.For Will’s part, he was sitting close to me at first pushing his leg against mine. The first time I pulled away but the second I left. I am a 29 year old guy with a six figure income and with a nice muscular body, good hair and a killer smile, i am very confident and an unstoppable flirt.We all arrived at the campground on friday night. I was the same old gang, except we had someone new this year. The reason i was looking forward to this weekend this year more than in recent years. My friend mike brought his sister rachel this year. Mike has been at as many of these camping trips as i have. He and his wife jenny talked rachel. ......." I closed the door and said to the guy, "No touching.... only looking..." The redhead still didn't move, I think she was too scared.. I walked up to her and took her hand with the vibrator and switched it on. I pushed her hand down until the vibrator was touching her pussy. I pushed it firmly against her clit, her mouth opened a little and she started moaning softly... "Mmmmmmmmm............" I let go of her hand and she kept the vibrator against her clit. Her horny self came out. Gripping it as she fucks me. She raises up onto her hands and gazes into my eyes. Seeing the desire in my eyes she can tell that I'm nearing the point of no return. She lifts her chest from me and is sitting astride me. Her hands on my stomach, which causes her arms to frame her lovely breasts. My hips are moving in time to hers. But now, as she rolls her hips back and forth on me she begins using her expert Kegel technique on me. I can feel the pressure in my groin building. Looking at her she.