Observing my partner's sexual encounter with another person

I decided to spy on my lover and his girlfriend while they were fucking. I hid in the closet and watched them through a small hole in the door. The girl was bending over and my partner was fucking her from behind. The girl had a beautiful body with big natural tits and a big ass. Her partner had a big cock and he was fucking her hard. The girl was enjoying it and moaning loudly. After that, the girl gave the guy a blowjob and took his cock deep into her mouth. Then she climbed on top of the guy and rode his cock while he was lying on the bed. The girl had a big pussy and the guy was fucking it hard. It was a very hot sex and I enjoyed watching it.