This goes back a number of years and is slightly long (though it may lack in detail, so constructive comments are welcome as I would love to improve for you all). These events are real and happened to me and my GF at the time along with another girl who had the hots for her.
I will only say in regards to age that we were all 18…
My girlfriend at the time was a smoking hot, curvy young lady. She was about 5’5″, 36C breasts, large, dark brown nipples, brown hair (highlighted) to her upper middle back and beautiful brown eyes. She kept herself neatly shaved smooth with just a small patch of hair over her clit. Sex was something we were more than comfortable with and had it at least once a day.
I am 5’10”, blue eyes and less curvy (I used to swim my freshmen year of high school), cropped close sandy brown hair, no piercings or tattoos. My cock is 7″ long, 3″ around and shaved smooth (along with my chest and stomach).