Left[m] out the morning after our first threesome

A few months ago, my girlfriend and I tried our first threesome with who everyone agreed was my hottest friend. He ended sleeping on our sofa because we didnt start until it was 1AM since everyone was nervous. The threesome went fine but it made me realize the idea of it was hotter than the actual experience for me personally.

I woke up and our bedroom door was closed but my girlfriend wasn’t next to me. My thoughts quickly rushed to conclusions wondering what she could be doing seeing how this friend that joined us for sex was in the living room. I put my ear to the bedroom door and couldn’t hear any noises. I quietly opened the door and could hear slapping noises coming from the kitchen that I couldn’t identify. I made myself known walking normally towards the kitchen to see the sight of my girlfriend being taken from behind over the kitchen counter. He was moderately thrusting into her with the sound of his pelvis and balls against her thighs and ass echoing.