As her feet slipped, Willow's pussy slammed down on the chemical soaked rope. The texture of the rope combined with the sand irritated the delicate ti...sues of her pussy and asshole and adding to the effect of the chemical irritants. Willow's pain blossomed like an expanding fireball.Time and again their feet slipped and they landed hard on the gritty rope. Each impact reactivated the chemicals and spread them further. The fact that their legs were not tied and the rope holding their hands was. Spike laughed and said that I still had three more to suck before class was over and I better get busy. He changed places with Nick and they made me do the same thing over again. I ended up doing it to all four of them."After the last one was finished, I did throw up and they laughed. Spike tossed me a rag and told me to clean my face. It was dirty, but I did as he told me. When I was done he warned me not to talk or I'd regret it. Then they let me go and I ran back to where the other girls. Serena worked on easing Melissa’s sore muscles. Fortunately, the whirlpool and orgasms seemed to have taken care of most of her tension already. Serena then had Melissa roll over and started working on her front.At first, Melissa felt a little uncomfortable, lying naked and face-up while someone who was equally naked massaged her. She had never had anyone massage her front before, not even a boyfriend. The reality of what Serena did, however, wasn’t any different than when Melissa was lying. She began to squirm and squeal quietly in my lap as my finger fucked her ass."You like my finger fucking your ass, don't you?" Oh gawd yes, it is so good feeling. At first it hurt a little, but now it feels great." Then say fuck my ass." Oh yes, fuck my ass." After I fuck your pussy, I will fuck your ass the regular way, ok." Oh yes, please fuck my ass anytime you want to."With my finger sawing in and out of her ass and my thumb rubbing her clit, Danni started to get very animated in my lap..