Ro, I think "at my ass" would be more accurate, what you wrote implied extreme sexual perversion.
Oh, I forgot - you are!
Do you know the difference between "Kinky" and "Perverted"?
"Kinky" is when you tickle your partners' ass with a feather.
"Perverted" is when you use the whole chicken!
(This was my 200th posting here - a spliff to celebrate I think!)