woman on top; cowgirl position
Refers to a sex position where the woman straddles the man and is on top. Common in adult contexts.
She said she likes the cowgirl position.
The cowgirl position is one of the sex positions where the woman can easily take the lead.
後背位 (doggy style) is a rear-entry position, while 騎乗位 is a face-to-face position with the woman on top.
Compound of 騎乗 (きじょう, 'riding on horseback') + 位 (い, 'position'), literally 'horse-riding position'. The term is a modern coinage for the sex position.