A pillow or sex pillow (especially a firm one) can be used, to alter the depth and angle of penetration. A wedge- or ramp-shaped pillow can relieve pressure on the top person's hands and arms. Placing a pillow under the woman's buttocks can lift her pelvis—a "Playboy" article suggested placing it under her hips to increase pressure on the clitoris. Each of these methods can increase the depth of penetration. Raising the clitoris generally allows easier access to it in this position. Using a pillow can also help the woman arch her back and avoid backache.