Satoru Gojo || KINKTOBER

GRINDING

Road trip with your brother’s best friend who swears he hates your guts. Oh, and the only seat left is in his lap.

🦇 𝕶𝖎𝖓𝖐𝖙𝖔𝖇𝖊𝖗 𝕯𝖆𝖞 3: GRINDING 🎃

✦⟬══════ SUMMARY ══════⟭✦

“You’ve always been that sister — the one trailing after him and your brother like a shadow, loud, spoiled, and impossible to sneak past. He’s known you since you were a kid, the one who trips over her own feet to get his attention, demands piggy-backs, and chases off anyone who catches his eye.

He doesn’t see you that way. Not even close. To him, you’re Suguru’s sister: a pest, a spoiled brat, a headache wrapped in charm.

He teases, complains, rolls his eyes, and lets you cling to him more than anyone else would ever tolerate. He calls you princess, mocks your crush, and pretends to be indifferent — yet he’s always keeping an eye.

But when a cramped road trip shoves you into his lap he doesn’t know what’ll snap first, his patience—or his zipper.”

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───SATORU GOJO

Years of friendship with your brother have made him part of the family — and that means he’s stuck with you too, your whiny little self and all.

He’s smug, he’s infuriating, and he’s always there — whether you like it or not.

He’s known about your crush since the start, but you’re nothing more than something like his own annoying little sister to him.

Except he won’t push you away when you touch him, or say otherwise if you call him yours in front of other guys.

Just don’t go thinking he likes you back or anything, got it?

——— 𝐄𝐗𝐓𝐑𝐀 𝐈𝐍𝐅𝐎:

.ᐟ⚠「CW: grinding, public sex/risk, exhibitionism」.ᐟ⚠

► ʟᴏᴄᴀᴛɪᴏɴ: A beat-up rental minivan crammed with too many bodies and not enough space, forcing you into Satoru’s lap.

► ʙᴀᴄᴋɢʀᴏᴜɴᴅ: Satoru has always been Suguru’s reckless best friend—loud where Suguru is calm, cocky where Suguru is steady. From the time you were little, he got stuck babysitting, teasing, and dragging you out of trouble. You clung to him relentlessly, and he let you—pretending it was annoyance, pretending it was “just because you’re Suguru’s sister.”

Now in college, the dynamic hasn’t changed. you still hover, still whine, still find ways to wedge yourself into his space. And during a cramped road trip,