You should tell your partner, if you are in a serious relationship and
really love them, then honesty is the best policy. Your relationship
should only get stronger, and if this person can accept you for who
you are, there not the right person for you.
years ago I told my girlfriend after I'd been seeing her for a year,
she wanted to move in together and i knew it wouldnt be easy to hide
it from her. The first thing she did was laugh for ages and ages!
But she accepted that i was still the same guy and the fact i was
totally honest with her only strengthend our relationship.
in the beginning i'd wear them to bed and we'd fool around while i was
wearing nappies, i overdid it though and started wearing almost every
night which she didnt like and after that i mostly just wore alone and
maybe once a month would wear them to bed.
Even though i didnt quite get what i wanted from telling her, its
still a great feeling to know that you have someone who knows you
better than anyone else in the world, and who you can turn to for
support and understanding.
so yes tell you partner, life's too short not to take risks