please help me

I am wanting to be a cuck i am submissive also. But everytime i make a joke about it with my gf she's doesnt seem to be into it she like wow thats gross im younger (21) she is a bit older (22). I am wondering were you into cucking your bf or hubby at that age or did it come after years like 30's 40's and how did you start, was it initiated by you or your spouse, and what did you do?

Thank you ladies for your time and any awnsers and information you can give me would be a great help, i really appreciate it.

Bulls give your two cents if you want.

Thanks