巣篭もり Sugomori

巣篭もり (すごもり)
膝を曲げて開脚させた女を横向けにしておく。男は上になった方の女の脚をすくい取り、直角に挿入する。

Sugomori (Brooding)
The woman lies on her side with her legs wide apart and tucked up. The man scoops up her leg and penetrates her from behind at a right angle.