My parents went out one night and to try and prove her maturity my 14 year old sister said she would babysit. Our younger sister was easy to look after seen as she was a baby and our parents had put her to bed before they left.

I wasn't so easy being 12 I had to prove that she wasn't mature enough to look after us. So I made her night, hell!
I didn't do anything she told me and was a total arse.

I was having so much fun annoying her until she lost her patience. She grabbed my arm and twisted it round and up my back forcing me to bend forward. With her other hand she pulled my shorts down. She gave me a choice a bare ass spanking or she could pull my underpants up to make a wedgie and spank me that way. Not wanting to be naked I took the latter.

She pulled the wedgie so far up she lifted me off the ground. She spanked me five times and told me I had to sit the rest of the night until I went to bed in just my underpants. I did and after a while got my courage back to annoy her more. Again she lost her patience and I was just expecting her to shout at me or something like that but, no.

She yanked my underpants down and grabbed my dick. She stepped me out of my underpants and walked me around the house pulling me by my dick. She led me up into her bedroom and locked the door behind her. While pulling my dick she spanked me with everything she could find.

I was totally humiliated. But I got my revenge a few weeks later with a genius idea.