kumagayasin posts
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Let’s keep playing games together, even when we’re adults.
“Rock and stone!” “Greetings are important, you know.” “Saying this makes me feel at ease.” “If I don’t say it, I can’t relax anymore—it’s basically a work habit.” I got a comment asking to see Tom and Joy hanging out together, so here it is. In the main Romance Maintenance s...
joy-i love you
He looks so calm and innocent, but having a huge dick and an insanely high sex drive is the hottest thing ever!!Well—honestly, just having a huge dick is already erotic enough.This version of Joy is still before he gets hard, so that’s his pre-erection size.By the way, Joy is built with a huge d...
DEKITAMA
This is a Dragon ○ Monster ○ fan-made (derivative) book that I published back in 2012.Looking back at it, I thought, “Oh, this is actually pretty cute,” so if you’ve never seen it before, I’d be happy if you took a look 😊
Happy New Year!
English VersionHappy New Year!I hope this year treats you well too.I’ve put together an illustration book on BOOTH, compiling drawings I posted on support platforms and X from 2022 to 2025.There aren’t any special newly drawn pieces, but if it sounds interesting to you, I’d be really happy if ...
thank you
Thank you all for your support throughout this year.This year was truly full of many things—both good and bad—and it felt like a turning point for me.I hope that next year will be filled with many good things, and I’ll keep doing my best moving forward.I also want to put even more effort into ...
Love Maintenance1
This is the first installment of the Love Maintenance series.I’ve gained a lot of new followers, so this comic explains what Tom & Ena are all about.These characters originally came from a one-shot manga I drew 12 years ago (2013).People told me they liked Tom, which led to the series continuing.S...
illustration
These are illustrations I drew during the time since the last update.Happy winter solstice, and Merry Christmas~!And an announcement:I’m planning to release my 4th illustration collection in January,covering works from December 2022 to December 2025, including the illustrations posted this time.Th...
Tom＆Ena love
Tom is a horny guy, so he wants to have lots of sex with Ena. He loves penetrating, knows how to use his ass, and can even force semen out through his anus — basically, tokoroten.
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I thought "when was the last time I posted?" and it turns out it's been since July... I'm really, really sorry for being so slow with the smut 😭 Whenever I start overthinking "what kind of erotic scene should I draw next," my brain just goes completely blank... I'll ke...
TOM JOY
I really love seeing characters in suits.There’s something about someone who usually dresses casually suddenly looking sharp and formal—that contrast is irresistible to me.
joy&tom
A slightly higher resolution than the one on Twitter.Sorry I couldn’t make any extra variations this time.I’ve been drawing Joy so much lately, so it was really fun to draw Tom again after a while.And… I just realized I haven’t drawn Ena even once this year. 😅
He is also interested in anal stimulation.
(I messed up… It's way too big…I’m interested… but there’s no way I could handle something like this…But people say it feels good once you can do it… ughhhh…)Maybe this is before I can even do tokoroten (anal ejaculation). 🍄🥛💦Joy-san has a huge dick.Guys who have a big d...
tom & joy
”Just let me lean on you a little… I’m craving some warm skin tonight…💦”That’s the kind of fantasy I’ve been having.Tom and Joy are friends—they’re not in a sexual relationship or anything like that.Tom wouldn’t go that far since Ena is important to him… but he would probabl...
joy
“In the second comic, Joy is trying to start a Pocky Game and is playfully inviting the other person to join.”**“So hey… if we’re gonna play a game,how about something like… that one?Y’know, like a P〇cky Game or a S〇cker Game—where we both start eating from each end…If you get ...
Happy Halloween!
「Give me a hug, or I’ll play a trick on you 🎃」
Joyful・Joyful.3
How many times in lifecan we fall in love with someone this deeply?Even without a reason,even if it’s never returned,even if it hurts, even if it looks pathetic—still, I’m so happy,so, so happy,and I can’t help but love you.Holding only my love for you,I run and run,wondering how far I can g...
tom ＆Grandpa
Out of billions of stars, I found you.I held you close.Let’s go search for the edge of the world—that’s the promise we made.He’s probably Tom-san’s grandfather.Tom’s grandfather passed away when Tom was still little,and his father also died when Tom was around 15 to 18 years old.He ended...
Joyful・Joyful.2
I fell in love.I’m crazy about you.Simple as I am, your voice turns my sky clear.Even when it hurts, I’ll still love you.I’ll always, always love you.I want to spend my whole life singing by your side.Someday,I want to hold you tight,kiss you, feel you close.While dreaming of that day,I just w...
Joyful・Joyful.
I’ve been drawing a lot of a Saint Bernard beastman character recently, named Joyful・Joyful.I still don’t really know exactly what kind of person he is yet,but I feel like he’s someone who expresses “I love you” a lot — that’s the kind of warmth I sense when I draw him.It’s been su...
Sauna + Twitter Illustration
Joy gets totally worn out in the sauna, probably because of his long fur.Tom isn’t really good with the heat either, but I’m sure he’d love saunas.Saunas really are great, aren’t they?Around last year a friend invited me to properly try out a sauna, and since then I’ve come to really enjoy...
illustration Twitter.
This is an illustration I posted on Twitter.
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Thank you for waiting! The adult scenes will start from here.However, since drawing explicit content takes quite a bit of time, I apologize in advance… I’d really appreciate it if you could wait patiently. 😭
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I've been drawing as usual, but lately I've been really enjoying coloring by hand with traditional media, and I’ve kind of been focusing more on that.I’m pretty happy with how the girl in the kimono turned out—I think I drew her well. (She’s not Yuki-chan.)That said, I know I need to...
Crocodile Clip Arts
I've been really enjoying analog coloring lately, and I've been drawing as practice.I'm practicing coloring with Copic markers and transparent watercolor.I'm still just starting out, so I don't have much knowledge or technique yet, but I'm going to keep working hard so I can ...
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Here are two new pages of the comic.I originally wrote the dialogue for these scenes, but it didn’t feel quite right. I spent about three days going back and forth before finally settling on this version.Even now, I’m still not sure if it really feels right to me.Just like last time, these kinds...
Repair bears on the street corner
The belt wrapping under the crotch is super sexy and really nice, right? (●´ω｀●)The logo was made by ChatGPT-kun!Also, I was able to make an acrylic keychain of the previous illustration on BOOTH, so if anyone's interested, please take a look! 😆https://kumagayasin.booth.pm/
Drumming Tom
I think the side slits on traditional Japanese hakama are kind of sexy. Normally, they’re covered by an overcoat, but when that’s missing, the glimpse you get—almost like they’re not wearing anything underneath—has a really erotic vibe. (●´ω｀●) I’d like to finish it in the style ...
Huff, huff...
Huff, huff... here we go, here we go!......Ugh... huff... oh no...I... I have to tell them...When your belly sticks out, your pants start slipping down...! (huff... huff...)That's why suspenders are great...! I... I just had to say it...! (huff... huff...)
I can't wait for summer to arrive.
I like summer, even though it is hot!I love the blue sky, clouds, grass and trees in summer.
overalls
I started drawing because I wanted to draw overalls, but I ended up really enjoying drawing the robot too!Also, I tried painting with watercolor on a large-sized piece for the first time, and wow—it’s really difficult! 😂From choosing the right colors to the actual techniques, I still have a l...
