He sits with his legs straight and she sits on top of him with bent knees on top of his thighs, and you both lean back.
Gives you both nice views of each other’s full bodies. She also gets to have control over the depth, speed, and angle of the thrusts.
For added pleasure, she could have him use his hand to rub her clitoris. She can lean back farther for extra G-spot stimulation.