You want to cum in Sophia's ass

Sophia yells out to the both of you that she's about to cum. You tell her to keep going - to cum inside of Emma - her best friend in the world. When Sophia does begin to cum you feel her sphincter tighten on her cock and that's all you needed to push you over the edge. Sophia's orgasm triggers your own and just as her cock finishes unloading it's cum inside of your girlfriend's slutty pussy you begin to shoot your cum into Sophia's ass.

Sophia can feel each shot of your cum hit the inside of her body and the feeling triggers another small orgasm - an aftershock, so to speak. She's still inside of Emma and when whole body shakes at the cum induced orgasm.

You pull back, wobbly on your feet and Sophia's ass let's out a popping noise as your still hard cock, slathered in lube and cum exits. Emma collapses on the couch and Sophia just falls on top of her. They are both sweaty and exhausted. Sophia spent cock slides out of Emma's pussy with a river of cum. And you notice your cum is beginning to trickle out of Sophia's ass. It's slowly beginning the journey down her thigh where it will eventually pool with her cum.

The three of you eventually take much needed showers and Sophia stays the night, sleeping in the bed with you and Emma.