The moment her arm lifts after a shower, the smooth line of the armpit is closer than expected. She has noticed first, and says with a laugh, “you like it here.” When the arm is brought down and clamps it in, the skin is soft and a faint warmth of sweat carries through. It is not as direct as penetration, yet what fills the view is all the places usually unseen, and the pace falters. Wakikoki, the armpit job, is the act of passing the penis into a partner’s armpit (axilla) and rubbing it between the chest wall and the inner upper arm. It is positioned as a variant of non-penetrative intercrural acts, called in English axillary intercourse, axillism, or armpit job, and is tied directly to a taste for the axilla, its hair and scent (armpit fetish).

Overview

The structural feature of the armpit job is visual asymmetry. Unlike penetration or a handjob, the body part involved (the axilla) is ordinarily covered by clothing and exposed for the first time in a sexual scene. The very structure of taking a part never touched in daily life and dedicating it to sexual use is the core of the taste.

Physically, the penis is passed into the space formed by the side of the chest and the inner upper arm with the arm lowered. The clamping partner adjusts the strength of friction through the angle of the arm, the pressure of the chest wall and the maintenance of posture. Increased sweat improves the glide, so settings after bathing, after exercise or in summer are favoured staging choices in fiction. As no penetration is involved, the risk profile is comparable to other intercrural acts.

Reception

The psychological core is the sense of an unsealed forbidden zone. The axilla is, among the body parts kept covered by clothing and arms in daily life, one where contact with others is especially uninstitutionalized. Outside very limited situations such as medical examination or art modelling, there is almost no occasion to touch another’s axilla. This social untouchability produces a distinct sense of transgression the moment it is converted into an object of contact in a sexual context.

The axilla also concentrates apocrine glands and is a source of the body odour involved in individual recognition. For the enthusiast of the armpit fetish, it holds a unique place as a body part offering both visual signs (hair, sweat, skin texture) and an olfactory sign (scent) at once. The armpit job justifies, within the frame of a sexual act, the approach to this double sensory sign.

History as a type

Naming the armpit job as an independent type is a phenomenon found within modern Japanese sex-trade vocabulary. Classical glossaries carry no clear independent term, and recognition advanced through modern adult manga and AV. In English, axillary intercourse and axillism have been recorded as classical sexological terms since the late nineteenth century, and Brenda Love’s Encyclopedia of Unusual Sex Practices (1992) gives it an entry. The Japanese terms wakikoki and waki-koki spread in step with the diversification of adult manga expression from the 1990s and its tagging as a genre.

In sexual expression

In AV, adult manga and eroge, the armpit job appears frequently in genre works combined with adjacent fetish types such as the armpit fetish and the side of the torso. As an AV subgenre, works tagged “armpit licking,” “armpit job” and “armpit teasing” have been produced continuously. A standard staging combines a sporty female character (sports club, gym, rhythmic gymnastics), revealing clothing (tank tops, sleeveless wear, summer clothes), and sweat-damp skin after bathing or exercise. The core of reception is the sense of visual possession of a body part premised on being covered, and the transgression of contact in a zone where it is not institutionalized.

It is adjacent to the “koki” family of acts: titfucking, handjob and footjob, which share the structure of rubbing the penis with a specific body part without penetration. Among them, the armpit job holds a distinct place as the variant whose target part has the highest social untouchability.

Variants

A both-armpits form clamps simultaneously on both sides, physically difficult and appearing mainly as a staging device in fiction. A licking-combined form pairs the armpit job with armpit licking, offering visual, tactile and olfactory stimulation at once. A teasing form combines with teasing and edging, enjoying the accumulation of pleasure without reaching penetration. A sports-themed setting combines the post-exercise sweat state, adding a visual and olfactory freshness.

Related terms

• Titfucking
• Handjob
• Footjob
• Armpit fetish
• Side of the torso
• Tanned-skin fetish
• Teasing
• Edging