The bride? Well, the best friend is going to fill her with his cum. He is then going to take her panties. She is going to walk down the aisle, then stand beside her husband-to-be, she is going to repeat her vows, and during all of this there is going to be cum oozing out of her pussy and sliding down her thighs. This slimy liquid will be a reminder of what a slut she truly is, giving her pussy away on her wedding day, the day she is promising her faithfulness to the man who believes in her.