We stood outside where the fresh air filled our lungs. It became obvious rather quickly that the ground was soaked as small ponds had appeared since y...sterday afternoon. We were now faced with the unpleasant choice of remaining in the dry cave with the myriad of biting critters, the low hanging smoke cloud and the smells of nature the horses had added or heading off to find a dry spot to camp in the new swamp that had sprung up.We lessened the smoke ceiling by cooking outside and decided to. Before I could make my mind up she turns around and pulls off her jeans, to reveal her nice plump booty. Then takes of her shirt slowly. And there my sister stands completely naked with her back facing me still watching the video as it plays and Mom is trying to get dad to cum. I then put my hand on her ass and spread her big butt cheeks, you could feel the muscle in her buttocks from years of sports. I looked at the view from the back and she had the most beautiful pussy, perfect lips,pink,. Naturally, there are a bunch of places that guys like right off the bat and so we went to some air and space museum and another museum in Chicago that was all about machines and stuff. Boring!!!I should say that there are really a zillion things to do in Chicago, and I could have spent my entire summer there, but Mom said we could only stay in one place for five days. One day we had to go to a ball game, to keep Travis happy, and to his museum another, but the remaining days we went to the Art. " Frank has a good point," Chloe admitted. "We need to see them fully erect. I suggest we masturbate our guys until we see them in their full glory. Get at it girls." It would be a lot faster if you girls took off your clothes," Mike suggested."It's about your cocks, not us," Susan retorted.So we all paired up with our girlfriends, they grabbed our cocks and got to work. It didn't take long. We all proudly stood there fully erect.Chloe took a ruler and measured us writing down the numbers. 7.5.