I knew she was having her bull over for the evening and I was supposed to be out of the house. I came back early and snuck into our side room across from our bedroom. I think my fiancé knew I might do this because they left the door cracked just enough for me to see into.
It was the most intense hard on I’ve ever had watching them from a dark room with only a sliver of light to see thru as I watched his 9” dick sink deeper and deeper into my fiancés shaking body. Her moans got loader as he plummeted his cock into harder with each stroke.
My dick was pulsing, heart racing as I watched him pump his seed into her tiny swollen pussy. Watching her wrap around his body and pull him in tight as he finished was the most primal turn on. His cum spilled out of her before he pulled his cock out like a sword from its sheath. They both laid there sweaty, soaked in cum still unaware of the show they had just put on ;)