My step-sister made me sniff and lick her arse hole

All right so this one day when I was eleven years old, well I think that was the right age. I was curious about sexual things and for an even longer time, I loved bum figures on girls, even today still. So anyway as I stayed a couple of days over my fathers house with my step sister at the age of fourteen. She was a rebellious type of teenager with jet black hair and always wore a red and black chequered skirt.

This one day, dad was at work, my sister was outside so I thought I had time all to myself. I walked by my step sister’s room and found saw that her door was opened. She had a pair of knickers on the floor that attracted my eyes; I walked up to them and then got the idea to go through her draws. There I found a pink coloured vibrator but I didn’t know much of what that was at the time.

Then my sister walked into her room and scared the living day lights out of me. Her
Vibrator flew from my hand while my other hand knocked her favourite lamp. It smashed and she was angry. First she yelled as I tried to explain to myself. Then she questioned me why. I just replied that I was curious and been horny on the thought of finding sexual things. Then she asked me about what I would do to repay her for the broken lamp. I didn’t have a clue but she looked at me wickedly.

“So you’re curious about women’s bottoms to go around sniffing their panty draws, then get over here and smell the real thing” is what she said to me.
She pulled me over to a desk and forced me on my knees and she turned and bent over with her skirt flicked up.

“Now sniff me or I’ll tell dad what you were doing and what you broke”.

Of course I was nervous but I didn’t want to be yelled at. At least that is what I thought at the time. So I sniffed my step sisters arse hole through her panties, then she pulled her pink knickers down so I wriggled my nose into her arse hole. Fleshy, puckering lips of her arse was met with mine as I kissed.
My nose buried into her rim as I sniffed harder. Then I noticed her arse raised and the cheeks spread oped as she told me to lick. Dad was not coming back for ages so the whole day I was dominated by my step sister.

I remember her arse hole was quite a thing, even beautiful as I rimmed it. I even remembered when she sat on my face with no panties on her bed as she played videogames. My hands were tapped and so were my feet but I took my punishment with out argue. No point in struggling so I just sniffed and lick till hours later she let me go.

now I am nearly twenty-two and my sister and I get along, I think she has put that incident behind her, but I never have. Now I have a complete arse fetish but in the way it has come to be, was it wrong? She was after all a non blood relative so I often think that is ok.