My Sister's Boob Envy

My sister and I shared a bathroom between our bedrooms. She's a couple years older, and at the time, more experienced than I was. Over the years, I heard her with a few of her boyfriends while I was in the bathroom.  She has a very petite, athletic body. She was never shy about it either when sharing the bathroom. She would often remain naked while getting ready. I admired her body. Her chest was nearly flat but with proud dark tan nipples complimenting her athletic and tan body. Firm swimmer's legs with a modest trimmed patch of brown pubic hair in between. I was a bit more shy, keeping my towel wrapped around me when sharing the bathroom with her, especially as I was just entering puberty. As my chest was getting more noticeable, I started noticing her lingering glances when we shared the bathroom.   Then one day after school (I was 14, she was 16), I was in the shower after my best guy friend had just been over and was washing his cum off my chest. She had come into the bathroom after soccer practice. Nothing out of the ordinary, she just said to keep the shower running cause she'll hop right in after me. I angled the shower head away so I could still wrap my towel around myself.  I opened the shower curtain to my naked sister. She giggled "still shy around me, huh" as she gave my towel a playful tug. As I faced the mirror, she gave me a hug from behind, wrapping her arms around my stomach. She set her head on my shoulder and looked at me in the mirror and said "I think you have a gorgeous body. You must be driving the guys crazy at school."  I felt comfy in my sister's arms. It had been years since we cuddled. I said "thank you, but no guys at all have see this body." Then she put her hands to my chest, whispered in my ear "can I see these?" I turned out of her embrace and faced her. I nodded my head. Then slowly undid my towel revealing my whole naked body to her. Her eyes gazed me up and down. I admitted to her this was my first time being fully naked for anyone before.  She embraced me with a naked hug. I easily felt her prominent nipples on her flat chest press against my breasts. I could feel mine suddenly harden, and my pussy started to tingle a little.  When she backed up she cupped one of my breasts.  She said "here's an odd question, but after I take my shower, would you be willing to let me take a good look at these? Maybe even let me play with them for a while?" I was stunned by her bold request but too tingly to care so I simply smiled and nodded yes.  I didn't bother getting dressed and just laid in her bed till she came out from her shower. I was so nervous as she laid naked next to me.  She felt my breasts, groped and massaged them, even traced her finger around my areola and nipples. They became very hard and I was aroused like crazy. She sat me up as she sat behind me, her head leaning over my shoulder as her hands continued to play with my breasts. "I can only imagine having such big beautiful breasts like yours" she quietly pondered.  She kept pulling and twisting my big nipples. My pussy was achingly moist at this point. She then lightly traced my areola and nipples again with her finger, then as she squeezed my breasts and teased my nipples, it happened...I had an orgasm.  Without even touching my pussy, waves of pleasure washed over me. My little brunette bush was soaked. My sister held me close as I came down from the intense orgasm. When I recovered, she looked at me wide-eyed. "I had no idea that could happen" she stated. "Are you okay".  After the shock wore off a bit, I told her that I didn't know that could happen either. We hung out in her room naked for the rest of the night, talking about all kinds of things and really opening up, even letting her touch my boobs some more. ^nippy E^