While the effects of the bite vary from male to female, it is the male's bite that has the greater range of effects. During penetration a male Nissian...will bite into the female, usually around the neck or shoulders. As they bite a cocktail of chemicals are injected, each designed for a specific purpose. The first chemical alters perceptions of pain and discomfort, and instead increases pleasure receptor, allowing the female to better accept the male. From what I understand from talking to. "Mmmmmmmm, really, Amber?" Ron asked as he walked up to his sister and pulled her into his arms. Their lips immediately met in a hot hungry lover's kiss that no one else in the world would have thought possible between them. No one knew that Amber and her younger brother, Ron, had been intimate sexual lovers for nearly two years now. And, in order for them to keep their intimacy a total secret except between the two of them, Amber frequently dated and would generally even have sex with the guys. We both graduated from high school and then got married. I mean what else could we do?Now 12 years and 3 children later we were growing apart. But damnit Laura was still sexy looking and I didn't want to lose her. And there were the kids to think about too.So when I first saw the evidence of my wife's betrayal, I didn't blow my top. In fact I didn't say anything at all. But I did begin to think about what I should do about it and finally decided that I would spy on her to see where she went and. She did it. I could feel the wetness which was due to biting her nipples. I soon put 2 fingers in and started fingering. She moaned with pleasure. I didn’t keep my other hand lips free,I kissed her lips while pinching her nipples with the other hand. She came soon. She was sweating, that was the sign of her first cum. Since we both had to go to office, I closed the windows and turned on ignition and switched on AC. By this we wouldn’t look flushed out. She kept commenting that I won’t leave her.