It was time to turn up the tension. She unbuckled her seat belt and leaned over. The steering wheel was against the back of her head and her breath wa... hot and heavy against his stimulated member. Tammy wanted to stimulate him to the point where he was going nuts but not enough that he would actually get off. She was rather better at blow jobs than hand jobs. Not that she was a slacker at either, but she wanted to hold him at the edge and that was more easy with her lips than with her hands. This was to much for me as i cried out please put it in me .Dave didnt say a word ,he pulled me up onto all four and i could now hear his breath ,it was deep and heavy.there was no movement for about 30 seconds then i could feel the tip of his huge ,hard ,hot cock start to enter my slippery hole,for a big man he was gentle,but i didnt want gentle and pushed back against him giving the signal that i wanted it in me,this was all he needed and he pushed,it stung at first then it felt like it was. She moaned and groaned liked a dog in heat. He slapped her buttocks while ramming himself in and out of her asshole.Her tits hung like watermelons while he fucked her hard and fast. He played with her pussy and she came several times on his hand. He let out a huge moan and filled his lover with his cream. He pulled out of her and pushed her to her back.Michael spread his lover’s big thighs and licked her pussy until she was dry. She moaned like a cat in heat. She came several times while. Hector and Mary retired to a private corner. "Hector, I believe that we should politely refuse the offer and leave before this gets complicated" Said Mary.Hector replied, "Suppose that we sort of invite these 3 couples to our lab and work on our science project together? We could learn from them and they certainly could learn from us. They could easily be persuaded to help us. We could finish by taking them to dinner. I am joking about dinner." Hector, suppose we modify our lab project. I can.