Cosmopolitan magazine calls it The Love Seat, but it’s also known as the Reverse Cowgirl position.

Him laying with his back propped up, legs spread, gives you good support and reduces the space between you, allowing for more interaction. While he’s back there — why not a good massage? Your back, butt, neck … Maybe a little hair-tugging to really intensify the moment.
This is a great position when you — the one on top — is aiming to please, but that does involve some work on your part! While you’re on top, your hands and feet will propel you up and down on his shaft …
Nevertheless, you are in total control to make sure he hits exactly where you want. Good times!