In Chinese meaning to BEG FOR, or to REQUEST EARNESTLY, perhaps someone begging to give us a look at that and so forth, but much more likely were her parents or the girl herself begging to be taken as a possible harem member (貴) and offering proof of virginity by flashing herself with「two hands pulling open each of the two sides between spread legs」revealing the CENTRAL part (or, making the「middle 中 bigger 大」if you wish) for confirming whether her hymen was still present and undisturbed, GLIMPSING THE CENTER, taking a flashing look at the portion with basic importance and the essential parts, such as the CENTRAL theme of a plot, and then FORMING A CONCLUSION about what was viewed having dominant or controlling power or influence over the outcome of that EARNEST REQUEST, begging to be accepted. Test conducted by court eunuchs for determining virginity and subsequent entry into the emperor's or lord's「garden of flowers」while recruiting candidates. These same procedures are still performed in some less-developed areas of the world, but widely reported by the media only after the subject fails the test and is stoned to death or gang raped as punishment for obvious inchastity (not always true in fact, and if that seems religiously hypocritical, it is).
　「Person」over「widely spread legs」while performing a medical inspection for symptoms of any sexually transmitted disease (old form: 叏). Or, merges two「hand pulling open」(夬) elements, one on each side, to get a glimpse of the CENTRAL PART in order to have sufficient information with which TO FORM A CONCLUSION about a matter. Perhaps combines either「spread legs」(冂) or「middle, vulva」(中) with「two hands」(大). CENTRAL refers to more than physical location in, at, or near the center—it also refers to what has formed in the middle, what has the dominant, controlling power or influence, and to what is of basic importance, essential or the principal matter. Moreover, an inspection was likely warranted of both orifices (吅).
　Related glyph of「two hands spreading crack with open legs」(臾) or「person」within「cavity with two sets of lips」has the meanings「urging」and「for just a brief moment」as in a quick look, a「flash, glint」as with the English expression 'beaver flash' that is still extant with this same meaning.

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: beg; center
Japanese: middle, centre, center
Unihan extended: center, conclude, run out; beg
EDRDG: center; middle

Used within names (nanori)
あきら　･　え　･　お　･　さと　･　ちか　･　てる　･　なか　･　ひさ　･　ひろ　･　や