When she jerked up, she couldn't stifle the loud moan that escaped her lips. This position was amazing already. She held her arms around her neck, smiling at her before it dissolved into a face of ecstasy.
"Ha-haruka!" Something rubbed just the right way, and a tiny shift of her hips meant a little shriek of pleasure. Haruka has managed to completely push at her g-spot, putting direct pressure at the exact location.
Her eyes may very well be in a state of rolled into her head as she sped up her movements, making damn sure to keep that angle.