separate the labia for her partner. Separating the legs wide would also usually open the vulva sufficiently for the partner to orally reach the clitoris. Some sex manuals recommend beginning with a gentler, less focused stimulation of the labia and the whole genital area. The tip, blade, or underside of the tongue may be used, and so might the nose, chin, teeth and lips. Movements can be slow or fast, regular or erratic, firm or soft, according to the participants' preferences. The tongue can be inserted into the vagina, either stiffened or moving. The performing partner may also hum to produce vibration. Cunnilingus may be accompanied by fingering the vagina or anus, or by the use of a sex toy; for penetration of the vagina, the aim may be to stimulate an area that may be termed "the G-spot". Women may consider personal hygiene before practicing oral sex important, as poor hygiene can lead to odors, accumulation of sweat and micro-residue (such as lint, urine or menstrual blood), which the giving partner may find unpleasant. Some women remove or trim their pubic hair, which may enhance their oral sex experience. Autocunnilingus, which is cunnilingus performed by a female on herself, may be possible, but an unusually high degree of flexibility is required, which may be possessed only by contortionists. Specific positions Any position which offers a sex partner oral access to a female's crotch area is suitable for cunnilingus, including: In the doggy style position, the woman may crouch on all fours while her partner performs oral sex on her from behind or from below. While facesitting, the woman may sit on or above her partner's face. In this position, she has more control over her body movements and can guide her partner or auto-stimulate against the partner's face. While lying on her back, the woman may spread her legs or pull them up to her chest, or place them on her partner's shoulders. She may lie on any surface, such as a table or floor. Partners may engage in mutual stimulation via the 69 position. The woman may sit on a chair or use some other support. During the spreadeagle position, the woman's arms and legs are spread wide. The woman may stand while her partner is either sitting or on the knees. However, in this position the clitoris is more difficult to reach and stimulate orally. The woman