She fucks BBC. If your cock is smaller than 10 cm, you get locked in a cage; if it’s between 10-15 cm, you aren't caged but she’ll never fucks with you; and if it’s larger than 15 cm, you have a full sex life with her but she’ll still sleep with BBC, and you’re required to watch.
What would you choose?
1. Continue your ordinary, boring life.
2. You are in a relationship with your favorite idol, but you are a cuckold. (Full description of the second option in the comment.)