cowgirl position

armchair theory; speculative argument; an idea with no practical importance

lust, sexual passion

cloth, fabric / skin without any makeup applied / batter, dough / (ceramics) a biscuit, bisque / one's true colours or character

an article, a written news story, such as in a newspaper or magazine or on a website / a private history, as opposed to the 正史 (seishi, “official history”)

being on horseback

ride a horse

on the desk / being on paper, (being no more than) armchair

sex mania, erotomania / a sex maniac, an erotomaniac

(informal) Short for 既婚女性 (kikon josei, “married woman”).