Why does my boyfriend like me to dress up as a maid or a stewardess?

This is a manifestation of sexual psychology. Some people, especially men, like their sexual partners to wear clothes that represent a specific social identity in order to obtain a kind of sexual psychological satisfaction. Generally, through this kind of clothing, he can achieve a kind of sexual psychological satisfaction by arousing his sexual fantasies. This kind of man is greatly influenced by Japanese uniforms seducing porn films, but the fundamental reason lies in his childhood sexual fantasies.