You may want to pull on some leather or textile riding chaps over your jeans to protect your legs from hot exhaust pipes, rough pavement and the weather. They offer water and wind resistance and feature knee pads and reflective piping. Just because chaps are designed for protection, doesn't mean they can't look good, too.
You'll find a plethora of chaps made to fit women of all shapes and sizes. Whether you want a snug fit or prefer a looser feel, Velcro panels and adjustable snaps will help you to achieve it. Women's chaps can also be adjusted to accommodate the height of your boots.
While most chaps are black or a dark color, if you want a more feminine look, chaps do come in pink fringed-leather and hip-hugger styles.