Courtesy of [StoryVa (Best Free Sex Stories)](https://storyva.com) as the main source of the story.
It is unfortunate that more boys don’t have a [big sister](https://storyva.com/stories/brother-sister/) like I had to help them through puberty. I mean that’s a tough time for everyone. But I had my sister and am I ever grateful I did.
We have always been close even though she is three years older than me. There were some rough times in our relationship when she was between 18 and 20 but even then, I sensed that she really would come through in a pinch, if it came to that. So by the time I was 18 and beginning to grow in all sorts of ways that I hadn’t expected, [Jo was there to help out](https://storyva.com/stories/family/).
You see, Jo had a way of getting me to talk about whatever was troubling me. Even when I felt embarrassed, she would be able to throw her arm around me and after beating around the bush, I would finally tell her the problem. What made it impossible for me to hide anything from her was that she was always so open with me. She would not only tell me everything that was bothering her but she also seemed to have absolutely no immodesty around me. I mean, I was in her room once talking about some of the things happening around school when she began changing her clothes. I was certainly aware this was just my sister but I was also aware that most of my friends would have given anything to witness the show I got during the next few minutes. Keeping up her side of the conversation, she proceeded to strip down to her bra and panties. I had seen her this way many times so I wasn’t particularly shocked. But she continued to undress, slipping off her bra and tossing it on the bed.
“Tell me, Brother, do you think I have a chance to catch a boy with these boobies?”
I mean, what could I say? About the size and shape of grapefruit halves, there were these two gorgeous knockers in front of my eyes. I felt my rod stiffening involuntarily. “Uh, Sis,” I murmured, “don’t you think I’m a little too young for such displays?”
“Huh? Oh, my tits you mean. Are you getting a hardon? Do I make you horny? Maybe, there’s a chance for me, after all. Hey, its been a while since we played show and tell. I’ll show you mine if you’ll show me yours. How about it?”
Without really waiting for me to reply, [Sis slipped her panties off](https://storyva.com/short-story/all-last-summer/). With her hands on her hips she looked me full on letting me see everything she had. I really couldn’t tell what I should look at. Breasts were at that time in my life the most exciting “forbidden fruit” but that patch of curly hair at the base of Sis’s tummy fascinated me, too. I was just beginning to get some growth of hair down there but it looked like nothing compared to hers. And the last time I had seen her crotch it was as sparsely covered as mine.
“Come on, [Brother](https://storyva.com/short-story/my-older-sister/),” she coaxed. “Get naked. I’m feeling horny and nasty and you know what happened the last time I felt that way.” I remembered with a shudder. We had been several years younger then but I still could clearly remember giving each other enemas and then rubbing lotion all over each other. It had been quite an experience.
>> Continue reading in its source website: [Brother & Sister Sex Story](https://storyva.com/story/big-sister/)
Source: reddit.com/r/eroticliterature/comments/nk157c/erotic_story_brother_and_big_sister