Woman brings home “tiny," 1.5lb kitten—unprepared for what she ends up with

Canadian Cat Owner Left Screaming as Kitten Spikes to 11lbs

A social media post from Carly Thomas, a 29-year-old cat influencer from Ontario, Canada, has left fans stunned after revealing her Siberian kitten's astonishing transformation. Just six months ago, the tiny ball of fluff weighed in at 1.5lbs and was considered "so cute" that owner Carly thought he'd remain small.

Fast-forward to seven months later, and Sprout - Carly's adorable yet gigantic feline friend - has ballooned to a whopping 11lbs, with some users jokingly referring to him as "a large baby in a cat suit." According to experts, Siberian cats are known for their slow maturation process, not reaching their full size until they're around three years old.

Carly initially underestimated the growth spurt of her pet, saying: "Did I bring home a kitten or a dog? He was such a cute little kitten. Don't get me wrong, he's still adorable, but I just want to go back in time and squish the cuteness out of that little guy!"

Siberian cats are a large, long-haired breed from Russia, with weights ranging between 8-18 pounds and lengths of 17-25 inches. Despite their size, they're known for being affectionate, social, and adaptable pets, making them excellent family companions.

As news of Sprout's transformation spread across the internet, fans couldn't get enough of his before-and-after photos. Carly's heartwarming post has garnered over 2.1 million views and 109,000 likes on Instagram, with users praising her for sharing their favorite furry friend moments.

For those wondering how much of the "floof" is involved in Sprout's growth spurt, one user joked that it must be a significant factor, leaving many to ponder just how much longer this kitten will take to reach his full size.
 
I mean, I get why Carly's so shocked... 6 months ago, she was like "awww, he's so tiny" 🤣 now, Sprout is basically a big ol' ball of fluff 😂. I think it's cute that owners underestimate how much their fur babies can grow. My little human is going through the same thing right now - from toddler to teen in like 2 seconds! 💨. But seriously, Siberian cats are gorgeous and super affectionate... I'm sure Sprout will be a beautiful companion when he grows up 🐱💕.
 
I mean I'm not surprised or anything, but like Carly should've known better than to underestimate the growth of her cat, right? 🤦‍♀️ I don't get why people are so shocked, like 11lbs is totally normal for a Siberian kitten... yeah right, according to experts, that is 😒. Anyway, I guess it's cute and all, but also kinda sad that she has to go through the whole "he grew way too fast" thing 🤷‍♀️. And honestly, who needs 2.1 million views on Instagram just to see before-and-after pics of a cat? 📸🐱
 
omg I'm low-key impressed but also kinda worried about sprout 🤯 11lbs is HUGE! and yeah, i can see why carly thought he'd stay small lol who needs that kind of maintenance? i guess it's good she's aware now though 😂 but seriously, experts say siberian cats take time to mature so idk what's going on with this one 🤔 maybe there's some genetic thing happening or something? 💡 either way, sprout is ADORABLE and carly needs to keep posting pics of him 📸💕
 
I mean, what's up with these cats?! One day they're tiny and cute, next they're like 11lbs and all fluffy 🤯. I'm not saying it's bad or anything, but I did have a friend whose cat grew too fast and it was just kinda sad 😔. And people are already making jokes about how much more "floof" there is now... I don't know, it just seems like they're growing way too quickly 🙄. Siberian cats are meant to be big, but 11lbs in seven months? That's crazy talk!
 
omg I'm low-key impressed by sprouts growth rate 🤯💥! 10lbs in 7months is crazy talk! 🙌 did you see that graph showing the average weight gain of a siberian cat? 📈 it's like they just get bigger and bigger... anyway, I think it's so cute how carly is enjoying every moment of sprouts cuteness phase 🐱❤️. stats show us 70% of cat owners regret buying a kitten (just saying). btw, did you see that before-and-after pic? 📸 sprout looks like a BEAST! 🦖
 
Omg I'm dyin over here 🤣 Carly Thomas needs to give Sprout a cookie for all the weight he gained lol 😂 and 11lbs is crazy for a kitten still!! Siberian cats are def known for takin their time growin up, so I guess we shouldn't be surprised 👀 but it's still wild seein how much he's grown in just 7 months 🤯 now I'm curious to know what his full size will look like when he hits three years old 🤔
 
OMG, I'm dying over here 🤣! I mean, who knew a tiny 1.5lb kitten could turn into an 11lb ball of fluff?! Carly is hilarious and I love how she's just embracing the fact that Sprout is no longer a "kitten" 😉. Those before-and-after pics are everything and more - I'm obsessed! 😍 Siberian cats are amazing, I've always wanted one, but I guess they can grow up to be quite the handful 🤪. Carly's post has been going around on TikTok too, it's crazy how fast these videos spread! 💥
 
I mean come on, 11lbs for a Siberian cat? That's crazy! 🤯 I've been following Carly Thomas' cat influencer stuff and she usually posts cute pics of her pets, but this one is like... wow. Anyway, I guess it's not surprising that Sprout grew so fast - Siberians are known to take their time growing up, right? 🙃 But still, 6 months from tiny to giant is like, whoa! 😱 Maybe Carly should've done some research on cat care and growth before bringing home a kitten. Just saying...
 
I mean, I get why Carly was shocked - 1.5lbs to 11lbs is crazy! But at the same time, her little Sprout is still super adorable 😂. I'm curious, though... has she considered getting him more exercise or something? Like, maybe more playtime with toys instead of just cuddling all day? I know cats are meant to be low-maintenance, but a 10x weight gain in 7 months seems kinda extreme 🤯.

And btw, I love how the experts said that Siberian cats take until they're 3 years old to reach their full size. Like, some people need time to grow up too... or at least, learn to use the litter box properly 😂.
 
OMG u gotta feel 4 Carly!! 🤯 Like, she was so sure her kitty sprout wud b tiny & now he's literally a big ol baby in a cat suit LOL 😂. I mean who needs a puppy when u have a cat that can grow up as much as sprout did?!? 🐈💪 But seriously tho, it's kinda wild how fast those siberian cats grow 🤔. I hope Carly got some good pics 4 her instagram bcos she's clearly the queen of cute moments 👑😻
 
I mean, can you even imagine having a pet that grows like that? I'm talking 10lbs difference in just 7 months! 🤯 Like, what even is happening with Siberian cats? 🙄 They're supposed to be slow growers or something? Anyway, it's so cute watching Carly freak out over Sprout's transformation... she's just joking around, but it's hard not to laugh at that adorable face 😹. I guess it's a good reminder to not underestimate our pets' growth spurts... and maybe invest in some bigger food bowls 🤣!
 
omg i cant believe sprouts weight went from 1.5lbs to 11lbs!! 🤯😂 he's like a little dog in a cat suit lol i love how carly is taking it all in stride and poking fun at herself about underestimating her kitten's growth spurt. 3 years old? that's crazy for siberian cats! 🤯🐈
 
omg can u believe sprout went from 1.5lbs to 11lbs?! 🤯😱 idk what's more impressive his massive growth or how carly's reaction is 💁‍♀️🐈 i mean, who wouldn't wanna squish that adorable face out of existence? 😂 anyway, good luck to sprout with the rest of his maturation process - he's got some major growing up to do 🤷‍♂️💪
 
OMG, like I cant even believe this little guy went from 1.5lbs to 11lbs?! 😱🐈 Carly is literally so relieved her cat isn't a dog or something lol! I feel for the girl though, she thought she was gettin' away with cute kitten vibes but now Sprout's all like "I'm a big cat, hear me roar!" 💪😹. Anyways, I think its kinda funny that people are already makin predictions on how much fur Sprout'll shed next 😂. Like, cant we just enjoy the adorable pics and the fact that Carly's bein a good mom to her kitty? 🙏💕
 
omg like i cant even believe sprout grew from 1.5lbs to 11lbs 🤯💥 what's going on with those siberian cats tho? 😂 they're supposed to be big and fluffy but like, 6 months is crazy 💁‍♀️ anyway i feel bad for carly though she probably didnt see that coming 🐈😔
 
OMG, I'm dyin' over here!! 🤣 11lbs is crazy talk for a kitten! 😂 I mean, I know Siberian cats are known for takin' their sweet time to mature, but wow! Carly's post is gettin' so much love and attention on the 'Gram, I'm glad she shared Sprout's transformation - those before-and-after pics are adorable 🐱💕. But for real tho, how many more months of "kittenhood" can this guy handle?! 😂👀
 
I'm shocked by Sprouts weight gain 🤯🐈 11lbs from 1.5lbs is insane! I guess Carly didn't expect him to grow so fast 😂. Siberian cats are supposed to be big, but that's still crazy. My neighbor has a cat and it's only 4 years old already, I wonder if it will get even bigger 🤔
 
omg I'm dying over here 🤣 Carly needs to get her cat some snacks, stat! 😂 I mean, 11lbs is huge for a Siberian cat and it's not like they're supposed to be tiny little bundles of fluff forever. But at the same time, Sprout does look adorable and I can see why people are obsessed with him 🐱💕. I think it's hilarious that Carly thought he'd stay small, though - those "so cute" moments are always the best 😂.
 
idk what's up with these massive cat breeds tho 🤷‍♂️ they're like tiny dogs or something lol sprout went from 1.5lbs to 11lbs in just 7 months? that's wild! 🐈👀 stats show that siberian cats usually take 3 years to reach their full size, but some of them can grow even faster 📊 they can weigh anywhere from 8-18 pounds and lengths of 17-25 inches 🤯 what a difference 6 months make? anyway, i'm loving the before-and-after pics of sprout and carly's post has got over 2.1 mil views on instagram 📈 109k likes too! 👍
 
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