My half-sister is a couple of years younger than me. We were separated at quite an early age (she was 1, I was 5) so we never really grew up with each other.

We recently decided to meet up with one another for the first time without our parents knowing. I picked her up in my car and we went to a restaurant together and did other brother/sisterly things.

At first, nothing really happened. But overtime, she would start to want to take pictures together. There was nothing wrong with this at first but she would get closer and closer to me each time.

By the end of the night, she would take photos with her face pressed against mine. I didn’t think much of it at first and just assumed it was normal.

The next time we met, she wore a much more revealing outfit - basically a crop top and bikini shorts. Again, we just did brotherly/sister things like shopping together and then went for food. This time though, she was a lot more open about her sex life.

She has a thing for much older guys (like 3x her age) and had recently broken up with her boyfriend. She kept saying things like she had no dick to suck or anybody to fuck her.

This time she would touch me a lot more. It started off just like casual bro/sis pushes but she would soon start hugging me. That started off as second long hugs but soon turned into longer hugs.

Embarrassingly, one time she hugged me, my cock got hard which she felt. She wound me up about how embarrassing it was that I got hard over my own sister.

On the drive home, she would only add to this by touching my face and thighs and winding me up. She would start talking more about her sex life and experience and asking me questions about mine. But it was all jokingly at this point.

She would start taking photos with me again with her tongue against my face and ask to kiss (just a little peck on the lips).

This had all been building over several meets until one time she asked for a bro kiss which lasted longer than a little peck. This time she would start touching me and took my hand and put it down her pants.

She bent over and unzipped my trousers and took me in her mouth.

We now meet up regularly, usually when she’s just broken up with somebody, and she’ll ride me in the car.

It’s wrong, but it’s good.