Is it wrong that I kissed my younger sister as a child?
Why would you kiss your younger sister?
My parents told me to do it.
An innocent kiss on the cheek is fine. But more intimate kissing is not right for siblings. That is incestuous.
I have to admit that I enjoyed it.
It's wrong to kiss your family in a romantic way. You shouldn't hesitate to let your parents know how you feel about this so that they know it was not okay with you.