The overall sexiness of watching the two of them fucking right in front of you

Stunned, you are unable to move or think as you gaze on at the couple having sexual intercourse right in front of you. It seems strange to think that the couple is your Mother and her husband, but you can’t help watching and being aroused by the scene. Your Mother’s naked body glistening from the beads of sweat that cascade down her backside as she heaves herself up and down around her lover’s massive pole… Your Stepdad’s gorgeous erection rising and falling as he jerks his hips up to meet your Mother’s thrusts, making his balls jiggle adorably every time the two people bump against each other… His powerful hands grabbing and kneading your Mother’s surprisingly hot ass, which spreads her cheeks apart, giving you a clear view of your Mother’s butthole.

Well this is hot, but you can't stand here watching your parents fuck all night. Can you?