Someone else posted in the comments further below, it's https://toonkor.com/BJ-알렉스
After looking at chapters 8 and 10 and reading Alex line of not having sex in a while translated as 'I don't have sex'(I was using google translate with the raws before this chapter came out on here), I thought for sure he was a virgin! He might not be, but it seems like he either has no experiences with guys or is just that selfish and unaware during sex.
DG gave consent, therefore it was not rape. And if you read the scene, you'll see that it was an accident - Alex neither made him endure it nor took pleasure in his pain. As soon as he made the mistake, DG pushed him away and he promptly stopped it and thought of ways to make it bettwr (aka finding lube and properly stretching him). Shit happens during sex when two people are fumbling together, specially two people who were clearly not very experienced.
Alex might be an asshole, but he was surprisingly considerate.
So far, this manga has been quite good in the consent matter. I can't even say he coerced DG into sex - he propositioned to him and even when DG said he'd refuse, Alex just said he'd find someone else - as is his right, he's not dating DG. If DG agreed out of jealousy, it's his own problem. And Alex was very clear about the nature of their relationship, he's not even leading DG on.
But I can't wait until he's the one who falls for DG! And from the looks of it, that angry sunbae is going to get mixed in the whole thing - I hope he becomes closer to DG.
I was reading the raws and....
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Holly fuck! They are gonna do it and it's gonna be hot. And NOT RAPE, YAY!
I laughed so hard tho at the 3 used condoms in the end. Alex really went overboard!
But by the looks of it, it seemed to me that Alex wasn't all that experienced . I mean, he forgot the lube and got so confused as to why DG was in pain, until he remembered the lube.