四十八手 宝船
男は仰向けに横たわる。女が男の片脚を股の間に抱え込んで腰を下ろす。抱え込んだ男の片脚を上に引き寄せ、これにすがって女が腰を使う。
The man lies on his back. The woman straddles him, lifts one of his legs and holds onto it while she humps him.