by Elixxxher
Nice, but you have some trouble with homonyms, such as using "herd" instead of "heard".
Also towards the end, you confuse Nikki and Tracy sometimes -- either that or you have some non-reference pronouns. For example, in "Nikki sighed softly as she maneuvered up on one forearm to be able to see Colin's glistening cock bury itself into her time and time again." the "her" has to refer back to the closest previous female subject, and so refers to Nikki. Colin burying his cock into Nikki. But really he is burying it into Tracy. So the "her " should be "Tracy's" or the "Nikki" should be "Tracy", one of the two.
Great story, but Colin became Darren became Mike and Tracy became Nikki which killed it for me... maybe go back and edit so that there is consistency in the storyline...?
...happened to Jen? You changed horses in the middle of the stream.