“Arghhhhhhhhhhhhhhhhhhhhhhhhh” Penny cried as she felt herself being stretched like she had never been stretched before. Then to her surprise the...knot inside began to swell even more causing pressure against her g-spot. The dog thrusting had slowed and Penny felt the knot pulse as hot dog sperm pumped into her body. The feeling was more intense than anything Penny had ever experienced and she felt her head would explode from the sensory overload to her nerves. Penny felt the dog lift off and. ." The coordinator started a slow countdown.The big block motors rumbled with a deep growl stirring the silence of that dark Pennsylvania night."Five, four, three..." You don't have to do this." Debbie pleaded once more."Two, one." The race coordinator dropped his arms in a swift downward movement.I let out the clutch as the big Impala lurched forward with tires squealing from the torque of the mighty 409 engine. My back was pinned against the big bench seat as Debbie's head pressed into my. She didn’t object when I started to unbutton her blouse. The first couple of buttons challenged me ... so I ripped the blouse open ... sending buttons flying everywhere. I pushed it off her, leaving her in a lacy bra that showed plenty of upper breast flesh.“What ... careful!” she gasped.“I’ll get you another one” I replied as I successfully unhooked her bra, setting her wonderful breasts free. My hands could now wander freely across her soft skin, cupping them and tweaking her hard little. She looked at me with great expectation and I asked was she going to be a good fuck toy for me, Sally could only nod but that was enough.I twisted her tits and she winced in pain and I just smiled and told her there was more if she was ready to which she nodded again. I looked across the room to Ted and could see pure pleasure in what he was seeing being done to his wife. I told Sally to remove the top closer eyes and hold her tits so I could play with then some more. Like a good sub see did.