Best friend's older sister comes home from college and is completely shocked by the fact that, in the year she's been away, your boobs have grown to be enormous. She gropes you and kneads your chest, completely in awe that this pipsqueak she used to babysit is now the bombshell with tits twice as big as hers. She's completely obsessed! She makes you show her your bras, marvelling at the size and groaning when she sees the obvious signs that you're outgrowing the already huge bra. She makes you sit on her lap so she can look down over your shoulder and see what it's like, from a first person perspective, to have colossal tits. She even lifts one of them to her mouth, moaning around your nipple at the simple fact that you're big enough for her to suck on your tit from that position. She's completely obsessed!
It had certainly been quite the year. In what seemed like a second puberty after entering adulthood, I was in for the surprise of my life.
It had only been about three months after my best friend's sister went off to college when I first started to notice some changes. I had been pretty petite for a while, even through my first puberty much to my dismay. So when I started to notice my bras not fitting right as well as everything else feeling a bit more snug, I wrote it all off as if my clothes had shrunk in the dryer.
By month four and five, the growth was more undeniable. I had started to buy larger sized clothes as well as new bras for my modest sized chest. Honestly, bra shopping was perhaps the most enjoyable for me as I could finally fill out all of the cute bras I had been looking at for years.
After month seven, I started to notice that my growth wasn't slowing down. My ass had rounded out and given me some amazing thighs and really nice hips. However, my breasts were already spilling out of all the new bras I had bought, including the ones I bought a size or two larger in case I kept growing. It was frustrating since I had spent all that money and now nothing fit anymore. Shopping in regular stores had become difficult as half the time they didn't have any bras in my new size. Thankfully I found a couple that would hopefully work for a while.
Month eight followed similar to seven but I could tell the rest of my body stopped growing and rounding out. Which was fine by me as I didn't want to have to keep buying new pants and panties every couple weeks and I already had a stunning body. My breasts didn't listen like the rest of my body. I began looking into alternate plus sized stores for new bras as well as started looking into custom bras online.
Months nine and ten were filled with me staying home most days as I couldn't find any bras that would help support my growing tits. Well, I couldn't find anything that I thought was reasonably priced. So, it was easier to just not wear anything and stay home.
Month eleven and twelve I had finally splurged on some custom bras that felt way too expensive. However, they fit better than I could have imagined. I even ordered a couple in a couple sizes larger since I was afraid I was going to grow out of these as well. Although, now that I had bras that fit me, and a couple new shirts, I finally started to hang out with my best friend again. My best friend was surprised to see how much I've grown but was determined to not treat me any different.
It was about month thirteen when my best friend's sister came home from college. I was over at their place hanging out when she walked in the door. She glanced my way with a surprised glance. She looked like she was about to ask who my best friend's new friend was until she realized it was me. That realization left her in even more shock as she walked over to confirm it was me. We all ended up spending the rest of the day chatting about our past years and my best friend's sister seemed to be hanging on every word of my life.
I finally went home late at night after having a lot of fun chatting with both my best friend and their sister. The next morning I woke up and started to go about my day as usual. My largest bra already started to look snug as I threw on a shirt and shorts. I then heard a knock at my door as my best friend's sister decided to pay me a visit this morning.
She said she came over because she wanted to confirm she wasn't seeing things yesterday and that I was in fact not the same pipsqueak she used to know. As I see the desire in her eyes, I respond that I had grown a bit more than I thought I would. She mentions that she can see that. She then bites her lips and looks deep in thought before she finally asks if she could see my bra. I blush a little and respond by taking off my shirt to show off my tits in their current bra.
Upon seeing my shirt come off, my best friend's sister blushes. She then makes a comment about them seeming so unreal and yet her eyes told her they were indeed real. I could feel her eyes linger as they traced the edges of my bra and noticed that this one is not quite fitting right. She asks about the fit and I reply that it is feeling snug but it's the largest one I have right now. She asks if she could see the others I have and so I lead her to my bedroom.
I hadn't actually thrown out any of my bras but instead put them in a box. I pull out said box and open it up and pull out several bras. Her eyes go wide knowing that I had once fit these but that they definitely would no longer fit me now. She marvels at how large some of them are but yet still way too small to cover even half of my current size.
She takes a seat at the edge of my bed and asks me to sit in her lap so that she could get a first person view of my chest. I blush even harder but oblige and settle down on her thighs. She rests her head on my shoulder looking down. I could feel as her hands rested on my waist. I could feel the hesitation as she looked tempted to reach up and grab them.
Honestly, I was loving all of this. I've had a crush on her for the longest time so I was ecstatic that she was enjoying me as much as she was. Wanting to tease her a bit more, I grab her hands and move them upwards. It might have been my motion but the feel of her hands against my skin and then the lower side of my breasts over my bra was still fantastic. I guided her hands up to the center clasp and flicked it undone. My breasts spilled forth into her hands as my bra fell away.
As the bare flesh of my breasts fell into her hands, she couldn't hold back anymore. She started to squeeze and kneed them, which pushed my back into her own chest. A light moan escaped my lips as my hands reached down to try to brace myself against my bed. I could feel her hands explore every inch before she decided to pull one up. As my breast obscured half my vision I could feel as she guided one of my nipples to her lips. I shuddered as she started to kiss my nipple before sliding it into her mouth. A deeper moan escaped my lips as she began to suck.
I lost track of time as she continued to play with my breasts. Honestly, I didn't care how long we spent doing this. I was loving her touch and the feel of her lips against my skin and her tongue against my nipple. I ended up sliding one of my hands down my shorts to begin rubbing my clit which only caused me to moan louder. I could feel as I was slowly drenching my shorts and was certain that the leggings she was wearing were starting to get wet as well. She didn't seem to care though as she was completely lost in her obsession with my tits.
After what felt like several hours, she finally stopped and flopped back on my bed. Not having the support of her chest to keep me up I flopped back with her. She then proposes we have some more fun with my tits after a brief nap/break. I responded that she better let me eat her out as well then. She says it's a deal before wrapping her arms around me as we cuddle for the next hour.











