She was wet for me. And, just as I suspected, she was naked under her skirt. I stroked one finger along the length of her slit, spreading her juices a...d parting her inner lips. At the top of my stroke I let my finger brush over her little hooded clitoris."Oh, that is so ... so ... Ooooooh! Oh! Oh!"I was making little circles all around and over her clit with the finger I had lubricated with her own juices. She was trembling all over."Tell me what you want," I said."Put your finger in me. Oh!. When Heather came down dressed for the night, she gave us a twirl, both Tony and I said she looked great, at 30 she could still turn heads. The taxi came and she was off, twenty minutes later our girlfriends arrived, we sat and watched a film having a kiss and a cuddle, then with the second film on I started getting bolder, I was feeling Diane up over her clothes, glancing to Tony he was doing the same with Julie, getting bolder I managed to get my hand under her t shirt, but her bra stayed. Like I said she was different. The rest of the day I was hoping that four would come soon. Finally, Dave and I walked over to the beach and we saw Mia and Cathy sun bathing on two sandy towels. "Hiya." Dave said as we approached the two girls."Hey your a little late, its almost five." Cathy said as she leaned in to hug Dave."Haha, yeah sorry we didn't know what time it was." I said.As I reached Mia, we both smiled and then I leaned in to kiss her. It wasn't anything passionate, just a little. My nipples sc**** against the log, one is on smooth wood and the other is on bark. One takes a smooth tongue and the other takes the bites of teeth. I think if I looked down I would see that my labia has filled and puffed and now lie completely outside the knot. I have no doubt that slick wetness coats the knot and I stop rocking and begin to grind.There is a fine line between pain and pleasure and masturbating on a log it’s easy to cross over unexpectedly. A little pain can be a good.