First time trying the cuckold life, my friend is getting fucked by a guy with a big tinder dick

First time decided to try the life of a cuckold and let his girlfriend enjoy the big cock of a guy from Tinder. Watched him fuck her hard and passionately, experiencing mixed feelings of arousal and jealousy. Felt like an unnecessary third extra, yet couldn't take his eyes off this arousing sight. The big cock was going in and out of my friend, she was moaning and screaming with pleasure, and I was just watching and agonizing with burning envy. It was an extreme experience that made me look at my sexual desires and fantasies in a new way.