Bro's boner

Been messing around with my hot older sister for years, and, this is how it started. She knew I got hard for her whenever we were together, and used it to cock tease me all the time. Took me to part time job I had one afternoon, and she wore a tiny, black bikini (it was Summertime). I lasted about 3 minutes before rising right up, creating a bulge in my work jeans. She smiled and asked "Did I do that?", knowing she did. Then told me she enjoyed getting me going. True story.

Is it just a brother thing or do you like family?

Hope someday you get to suck on his boner.