四十八手 敷き小股
両脚を伸ばしてうつ伏せに横たわった女の上からかぶさって挿入。女の太腿を外側から挟み込んで脚を開けさせない。
The woman lies on her belly with her legs closed and stretched. The man, lying on top of her penetrates her from above. While making love, he presses her legs inwards with his thighs.