Strange thinking that disturbing me.

Dr i know this maybe strange or very rare ocd but i don't why i am so much obsessed with my private parts like i always think like that i am bathing in open and what other people will think about my private parts, what will be there reaction etc. This ocd is not any gender centric or age centric like if some small boys are bathing openly then also i think same about this that i am bathing naked and what they will think on seeing my private areas. Real life example, yesterday i visited ganga ghat and there was a boy of around age 10 he is changing his clothes naked and he weared first tshirt to hide some of his private areas and then some of his elder sister and aunt putting his tshirt up to make him feel shame and laughing just by watching this and imagining myself in place of him my penis starts leaking some liquid. I mean i not have any sexual thought towards any gender but seeing myself or any boy naked i imagine myself there and that thinking disturbing me whole day.