It makes you realize what you are. Unable to give your love of your life the sexual experience that another man with a bigger more powerful cock can. Both very humbling and excitement beyond belief. the first time I watched her with her first bull lover I just knew I couldn't compete with his ability to satisfy her the way he did. Hence the next step getting a cage. Put me in my place. Then it progressed from there with me craving cleaning up her pussy to me then fuck licking drinking up their combined delicious juices. Having his balls in your mouth as he tenses up and unloads in her is nirvana.