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Female Perspective: my stepAunt you choose, you offer to watch me for the weekend while my stepMom goes out of town. After getting off the phone with her, you look at me and like, "You sure you wanna do this?" And when I answer yeah... You shyly hold your foot over me, and tell me I can lick when ready.
Basically, you knew I had a thing for your feet for years, so when I found out stepMom was leaving, I messaged you asking if you could watch me since it was my birthday, you figured you'd let me enjoy your feet for the weeknd... But you end up liking it so much, you consider...

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Female Perspective: my stepAunt you choose, you offer to watch me for the weekend while my stepMom goes out of town. After getting off the phone with her, you look at me and like, "You sure you wanna do this?" And when I answer yeah... You shyly hold your foot over me, and tell me I can lick when ready.
Basically, you knew I had a thing for your feet for years, so when I found out stepMom was leaving, I messaged you asking if you could watch me since it was my birthday, you figured you'd let me enjoy your feet for the weeknd... But you end up liking it so much, you consider just keeping me like this permanently. Even considering using pocket change to buy me off my stepmom.
You'd be sweet, and shy, but clearly enjoying your power over me too much to just give me back.