Lisa knew that her arse turned me on so she would wiggle it even more knowing that it drove me crazy. The cloth of her shorts would follow the contours of her cheeks and would ride into the crevice of her arse cheeks. From the front you could plainly see her luscious pussy straining to get some attention. It was making my cock harder by the minute.
The sun was hot and beads of sweat were running down her back. She was breathing heavily but so would anyone after cycling up that bloody hill! We had decided to go cycling for the day in one of the large local parks and we had picked the best day of the year for it - not a cloud in the sky and lovely and warm. This suited me perfectly as it meant that Lisa wore very little, to keep cool. She was wearing skin tight shorts and a tight little "T" shirt. Following her was a problem as I tended to look at her gorgeous arse more than where we were going. Lisa knew that her arse turned me on so she would wiggle it even more knowing that it drove me crazy. The cloth of her shorts would follow the contours of her cheeks and would ride into the crevice of her arse cheeks. From the front you could plainly see her luscious pussy straining to get some attention. It was making my cock harder by the minute.
We eventually came to a secluded area with lots of flat grass that looked as if it would be perfect for a spot of lunch. Lunch consisted of champagne, sliced meats, crusty bread followed by some fresh fruit. The drink and food was soon gone. We lay down on the picnic blanket and I closed my eyes and was starting to doze off when I felt a hand undoing my trousers. Keeping my eyes closed and not moving I felt a hot hand gently take hold of my cock and another of my balls. Before he had had a chance to get hard I felt a hot mouth envelop my rapidly swelling member. I let out a loud moan - it was exquisite. I wasn't sure which I preferred, Lisa's hot mouth or her tight cunt. I would have to compare to remind myself.
Lisa lifted her face up to mine and kissed me hard, twisting her tongue around mine, the taste of my cock in her mouth adding to an already horny situation. Her breasts were out of her bra in three seconds flat and a nipple was thrust into my mouth - I eagerly sucked on it, circling her nipple with my tongue and causing Lisa to moan out loud. She stood up and dropped her shorts, stepping out of them and squatting down on top of my now dribbling cock. It slid in to its full depth in one wet slippery movement. Lisa's cunt was soaking wet too. Sitting on the bike seat had turned her on so much that she was now literally dripping with sweet juice.
She was riding up and down my hard cock with her gorgeous tits rubbing by chest when I suddenly became aware of a couple sitting down staring at us between some trees about twenty feet away. I froze and mentioned very quietly to Lisa that there were a couple watching us fuck. Lisa screamed through clenched teeth "Oh my God, Oh my God. What are we going to do?" I looked over at the couple and noticed that they were not staring at us any more but were snogging each other’s face off. Obviously seeing us fuck turned them on.
When they noticed that we were looking at them they turned to us and told us to carry on and not to mind them. - then realised that my cock was still inside Lisa and it was still rock hard. We both looked over at the couple as they continued to kiss and slowly undress each other. He lifted up her shirt to reveal her braless tits. She was tall and slim with pert breasts and narrow waist. She fell to her knees in front of him and pulled out his cock and started to suck it slowly along its full length. Lisa started to ride my cock with renewed enthusiasm as we both looked over at this lovely woman sucking her partners cock. It was so horny watching them watching us. The woman stood up, turned around, dropped her trousers and bent right over. He slipped his cock slowly into her cunt and started thrusting. They turned slightly so it was now possible to see his cock sliding in and out her cunt.
Lisa got off me and knelt in front of me - I quickly started to fuck her like a dog on heat whilst playing with her dripping wet clit. I knew from the sounds that she was making that Lisa would not take much before coming. Seeing this couple fucking in front of us and knowing that they were watching us fuck was too much for Lisa and her whole body arched as a huge orgasm shuddered through her. I was only seconds behind her and took my cock out and gushed out loads of hot spunk all over her beautiful arse. At the same time the man shuddered as he filled his partner up with spunk. I lay down next to Lisa and watched the other two get dressed. They both waved their hands slightly and nodded at us as one would do with a stranger you pass on the road - and they walked off, leaving the both of us almost naked, covered in spunk and sweat. But very happy.
We never did see them again. We still keep our eyes open though, just in case.