I am sorry, perez. Things like this happen in the work place & other places). I endured same when I was at work (years ago, am nearly 70 now).
My son was also upset by an accusation at work and I gave him full back up (iit wasn't anything sexual`l).
I honestly don't know what you should do, Perez, apart from leaving job and giving a wide berth - not always possible.
Perhaps other people have been similarly sexually compromised but didn't have confidence to speak out. That is worth more than an average, in writing, complaint.
Entirely up to you what you decide but, on here, you will have plenty of encouragement for grassing up the perpetrator, quite right toot! Not easy unfortunately.
I wish you all the very best
, please come back and tell us what happens, not for a 'prurient' reason but because like to hear a woman taking charge and not succumbing to a male scumbag.
(I know not all men are scumbags, an awful lot are lovely; my husband was as was dad an father in law.
Ignore last bit if you want, I just wanted to affirm that I don't think all blokes are same.)