Your carer is not allowed to kiss you.
In Germany, people are not allowed to take advantage of vulnerable persons.
Vulnerable persons are:
People who need help and protection from another person.
So he has done something wrong and prohibited.
Tell him that you do not want to.
He must accept that.
If he continues, get help.
Tell another carer or your guardian.
If they do not believe you, look for someone else.
Until someone helps you.
Important:
Your feelings are ok.
You will not be punished.
You are allowed to say NO.