Pantsing and Stripping Forums

Learning about Body Development of the Opposite Sex Over Time by Means of Wrongful Looking

I grew up without any sisters and did not know a thing about a girl's naked body during ages toddler through ten. That's not unusual as there were no girls around the house and as I didn't have a "mother thing", not even in curiosity, the whole idea of nakedness was not any part of my life until around 12 or so.

But because of an unusual situation related to an unexpected ability to use voyeurism, I got to see the development of a girl I knew as she went from 10 through 17. At the time I did not view it as a sexual turn on as much as a - let's call it - exciting interest.

She was the sister of one of my closest friends who I interacted with all the time in their house. She was a fun person and we were exact peers where my friend was two years younger than I was. I saw her at my elementary school, and we were together in one of our classes. I saw her throughout middle school and high school. After that my friend and I drifted apart, and I no longer visited his house. Though his sister and I are Facebook friends while he and I are not.

Because of an oddity of the house's layout and construction, there was a way to look into her bedroom and over the years I got to satisfy my curiosity related to the development of a girl's development into becoming a young woman by seeing her time and again, in the nude. Of course I did not think to myself, "This is the development of Terri L." as my mind didn't work that way. I was just excited over seeing a girl in the nude and had an additional excitement over seeing her daily at school, knowing what she looked like naked.

But the purpose of this post is to ask any others out there, did you use secret observation to learn the development of someone of the opposite sex that you saw constantly and occasionally naked? Even if it was your sister or stepsister or a niece or someone of that kind while on the surface you acted as though all you saw was completely natural while secretly in your thoughts were the same thoughts I had about Terri. "Oh, wow. You are growing hair, there!!" "Your breasts are beginning to bud and your areola are changing!" "The difference between 11 and 14 is amazing!" "Terri, you're only a B cup - and I'm NOT supposed to know that about you! Ha ha!"

Am I WAY out of line, or did any others out there, when they were boys or girls, look at someone over time and think about their body's development without others understanding this was on your mind?

Xirix7 wrote: Sun Feb 15, 2026 3:40 pm Am I WAY out of line, or did any others out there, when they were boys or girls, look at someone over time and think about their body's development without others understanding this was on your mind?

Growing up, I never had any friends I was close enough to that I spent enough time at their house regularly to have that kind of opportunity, and even then none of them had a sister less than 4 years younger or older so there wasn't anyone for me to see either.

So for me it was just surreptitiously looking at the other boys in the locker room at school.

"Looking at people surreptitiously is cool!"

(said in the style of Bevis)

Xirix7 wrote: Mon Feb 16, 2026 12:57 pm "Looking at people surreptitiously is cool!"

(said in the style of Bevis)

I mean, it would be better if we were just generally more accepting of curiosity.

Of course, I say that as the shy chubby boy who fantasized about being dragooned into being a nude model for his 8th grade health class, but still...

Only thing I can think of in this regard is one time getting naked with my best friend David's sister in their backyard shed. Nothing else happened; we just stared at each other for a few minutes.

Only thing I can think of in this regard is one time getting naked with my best friend David's sister in their backyard shed. Nothing else happened; we just stared at each other for a few minutes.

Did you learn about one another's body development?

Xirix7 wrote: Mon Feb 16, 2026 11:21 pm

Only thing I can think of in this regard is one time getting naked with my best friend David's sister in their backyard shed. Nothing else happened; we just stared at each other for a few minutes.

Did you learn about one another's body development?

Yes, first time I had ever seen a naked female other than my sister when we were both very little.

Was she in any way developed when you looked at one another? Had her breasts budded or had she began growing her pubic hair?

I've had this with my cousin. We're of similar age only a 2 year age gap and grew up together, and there were numerous times were we saw each other naked, and i remember this going on from before both of us hit puberty till i think when she was around 13 and had started developing breasts. Unfortunately i was a late bloomer so in our childhood games she only got to see me with my baby dick

Xirix7 wrote: Tue Feb 17, 2026 4:44 am Was she in any way developed when you looked at one another? Had her breasts budded or had she began growing her pubic hair?

David's sister is 2 years older than us, so yes, full development including moderate sized breasts. Of course, at age 14 I really had no real frame of reference to go by. David had dared us both to expose ourselves in their backyard shed. The entire incident lasted about 5 minutes. I was kind of scared at the time and did not become erect as she stared at me. No touching occurred.