I instruct my step-sister's boyfriend in sexual intercourse due to a complaint from his girlfriend

I intervened after my stepsister's complaint about her boyfriend's inadequate performance. I coached him, demonstrating on my sister's friend, leading to a satisfying encounter.

I was venting to my step-sister about her boyfriend's inadequate performance in bed when she challenged me to show him how it's done. Little did I know, her boyfriend was eavesdropping. When he confronted me, I decided to give him a lesson in pleasure. I instructed him to take his girlfriend from behind, showing him how to thrust effectively. He eagerly followed my instructions, satisfying his girlfriend in a way she had never experienced before. As I watched, I found myself aroused by the sight of her voluptuous curves bouncing with each thrust. I joined in, taking her from behind in a similar position. We continued our passionate encounter, exploring each other's bodies until we both reached our climax. It was a wild, unforgettable experience that left us both breathless and satisfied.