I come home from a trip with my friends and let you in on my secret. I've been cheating on you. His dick is so much bigger than yours and I need to show you and compare your dicks to each other. I'll do a demonstration on the massive difference I feel when he is fucking me with his big dick compared to when you are trying to fuck me with your small penis. It's night and day and I prefer his cock over yours. There is no way you can live without me so now you are my cuckold for life.