Can't stop now; go faster

"J-Just give me a minute, will you?!" you respond. You really had to get off, but it's not happening fast enough; you realized that you had to double your efforts. Your hand started rubbing faster, your free hand coming up to squeeze your breasts sensually. You closed your eyes and imagined back to when Alex fucked you earlier. You had felt so full, just like the emptiness in your crotch was calling out for. It wanted to be filled, over and over again.

The image was bringing you closer and closer to cumming. You could feel it right around the corner. With just a handful of seconds to go before you flew over the edge, you heard a frustrated knock on the door.