If you are a bit too curvy for a really skinny jean but love that clean, slimming effect of that silhouette - you just need to try (and sometimes try and try again) the right jean for your body. Just in the store is the Darling Diva jean from It! Jeans. These jeans have a dark wash which works to elongate the visual line of your leg and are slightly tapered at the ankle.
Now that you have found the right fit for your jeans you can pull the look together with some volume on top. A volumonous top will balance your look (and cover your rear). There are so many shapes to pair with your slim cut jeans. A solid color t-shirt weight batwing will look great. A layered vest over longer length henley is a great casual look. Or go for a chunky wrap knit with a great contrasting belt that will accent your waist. Show off your assets!
If your work offers casual Fridays, start with a long crisp white button up shirt, add a menswear inspired vest, and layer on a longer jacket. This will keep you work appropriate and comfortable.
Finish it all with your style of jewelry and accessories. If you are on the short side - stay with a darker hue for shoe. If you are tall you can go for a pop of color. Own your look and have some fun with it.