Clinical Observation During Intimacy

My partner and I have been together for two years now. We're currently in a long-term relationship, yet we maintain an open dynamic where we explore different aspects of intimacy. Last night, after some initial foreplay, she initiated a position that involved me entering her from behind while she was on all fours. She had lubrication ready and positioned herself carefully to maximize sensation. As I entered her, the slickness allowed for easy penetration. We both moaned softly as I began thrusting in slow, deep strokes, feeling the tight grip of her inner muscles around my member. Her hips moved back against me in rhythm with each push, our bodies aligning perfectly. My partner's thighs quivered and she leaned forward slightly to rest on her forearms, her breathing quickening into sharp gasps as I continued. The angle provided a unique pressure on her G-spot that had her arching and trembling by the time I reached my climax inside her. Did anyone else try this position recently and get similar results?