Dangerous Younger Sibling Friend

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Ridibooks
"...Are you seriously hitting me with your cock now?"
Influencer Yu Hanbyeol's life had always been filled with glamorous and dangerous things.
In the past, in the present, and always.
But if she had to name the most dangerous thing of all, it would undoubtedly be her younger brother's friend, Im Sumin.
Just look at him now. Dressed as a woman, with an enormous bulge pushing against the front of his skirt, there was definitely something suspicious about their supposedly ordinary contractual relationship.
"...Damn it, I'm wet again."
"Then I'll show you how I do it, so according to our contract, you have to show me too, noona."
...She thought she'd gotten herself a harmless little deer, but it seems she'd actually gotten tangled up with a sly, lecherous nine-tailed fox.