The foot is one of the least appreciated but most highly sensitive part on your partner's body. It also sees the most abuse. How often do you wish someone would rub your feet after a long day? Giving your lover's feet some attention is a nurturing and naturally erotic thing to do.
I'll be describing one way to give an erotic foot massage, but there are many more ways to give a good rub. Many of the techniques I describe are used by professional massage therapists, only here the right emphasis makes them both relaxing and erotic.
Begin by getting your partner comfortable. Sit on the floor with them in their favorite chair, or on the couch or bed with a pillow placed under their knees. Taking your time is one of the most important things in giving a good foot massage. A fast foot rub feels forced and anything but erotic. Start with warmed oil or lotion spread evenly in your palms (a few seconds in the microwave works), not directly on their skin, and focus on one foot at a time. Stroke your hands forward from the ankle and over the tops of her feet, letting your thumbs curve underneath to hug the balls (part closest to her toes).
The instep is a particularly ticklish and sensitive part of the foot, and where many people feel the most muscle tension. Stroke upwards here with alternating thumbs, while still cupping the rest of his foot with your hands. Take note of the folds of your partners sole, and trace them with your fingertips. A very light touch can feel ticklish, so alternate that with a deeper rub. Using your palms to rub the foot's insteps in circular motions is also good for tension release. If you lover isn't too ticklish, separate his toes with your fingers as if you were clasping hands. A rocking, sliding motion between the toes feels very intimate. After that, gently pull up on each toe with a ringing, twisting stroke, beginning with the smallest and working your way up to the big toe. Stroking upward along the big toe with it nestled between your thumb and index finger is a move that can send your partner into orbit.
Repeat these techniques on your lover's other foot and finish by rubbing your entire hands upwards against their feet. Your lover's feet should be completely relaxed and their senses aroused. Further massage play can involve using edible oil or warming oil. Once you and your lover are comfortable making the feet an erotic part of play there are many options to explore.