He thrusted forward now, to meet her every movement as he cradled her head in his palms. He was fucking her mouth, but always careful not to hurt her....She kept her lips tight, yet allowing that long hard shaft to slide back and forth smoothly. James reached down, sliding her over-sized T-shirt off her shoulders, revealing her firm chest, her nipples screaming for attention.Then James pulled out, knowing he was near. He started to pound on his cock with his fist, faster and faster until his. ..I interrupted her nervous chatter before she dug a hole big enough to sit in...Relax its cool as long as you don't mind the hmm natural effects, I said, chuckling.By now Imogen was less than two metre away and effortlessly shrugging of her minimal clothing to reveal two b cup boobs that were pert and topped with two nipples that stood slightly proud puffy like one of the red anemones on the rocks.Her mons was a perfect mound upon a small strip of ginger hair was trimmed neatly and shortly. She could see the lump in his pants growing; she wanted to fling herself against him and smother him with her body--her cunt and mouth and breasts."This has to end it," he muttered. "I had one hell of a night last night thinking about how wrong it is..." Oh, I know!" she gasped. Her pussy was already wet. She had awakened with her clit tingling, she had fought herself to keep from playing with her cunt and breasts the whole morning. This evil obsession she had for her brother was unnatural, it. We nervously disconnected and hurried to catch up with the finishers in front of us.We went to my car, toweled off and kicked off our shoes and socks. I stood and changed from my singlet into a T-shirt while Marge did the same inside the car. We decided to forego the post-race activities in favor of some fluids and watermelon from our cooler, then headed home.I let Marge have the shower first; neither of us was up for any shower sex! Then we ordered in some pizza and plopped down on the couch.