Fingering (sexual act) uses vagina
Fingering is typically the use of fingers to sexually stimulate the vulva (including the clitoris) or vagina. Vaginal fingering is legally and medically called digital penetration or digital penetration of the vagina. Fingering may also include the use of fingers to sexually stimulate the anus.Fingering may be performed on oneself (masturbation) or by or with a sexual partner. When performed on the vulva or vagina by a sexual partner, it is a form of manual sex, and is analogous to a handjob (manual stimulation of the penis). It may be used for sexual arousal or foreplay, constitute an entire sexual encounter, or be used as a form of non-penetrative sexual activity.Stimulation
Vulva
Parts of the vulva, especially the clitoris, are erogenous zones. Massage of the vulva, and in particular the clitoris is the most common way for a woman to achieve an orgasm. Studies indicate that 70–80 percent of women require direct clitoral stimulation to achieve orgasm.  The clitoral glans or shaft may be massaged, usually through the skin of the clitoral hood, using up-and-down, side-to-side, or circular motions. The rest of the genitals are also stimulated by fingering.Vagina
While the vagina is not especially sensitive as a whole, its lower third (the area close to the entrance) has concentrations of nerve endings that can provide pleasurable sensations when stimulated during sexual activity.Fingering the vagina is often performed to stimulate an area termed the G-spot. The G-spot is reportedly located roughly five centimeters (2.0 inches) up on the anterior wall of the vagina, forwards toward the navel. It is described as being recognized by its ridges and slightly rougher texture compared to the more cushion-like vaginal cavity walls around it. Fingering this spot, and in effect possibly stimulating the Skene's gland, is commonly cited as a method that may lead to female ejaculation.Some women have cited the "come hither" approach as a significant catalyst to orgasm. This technique involves the middle finger, sometimes additionally the index or ring finger, making a hand gesture like "come here" with the palm facing upwards towards her pubic bone. Medical professionals suggest washing the hands before contact with the vagina, to ensure proper hygiene, especially when moving between different orifices.
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