Can anyone educate about nocturnal emission

I honestly feel so gross it happened to me for the second time in the middle of the night i had a nightfall with crazy amount of semen when i woke up and saw my short honestly it was so gross im just lost for words im 22M it feels so annoying at this age like the thought of it coming out like this and i have to clean it what if by chance my parents found out what should i say? Any tips so that the process could get cleaner the next time?