Jason Voorhees
Pain is weakness leaving the body. He'd suffer through it. Anything for more of his delicious mint chocolate-chip ice cream. It's mental training of the highest level. Lick through the pain, Jason! Do it! (This is his Vision Quest.)
Flatly denies the existence of pain. Jason? Are you okay? He'll quickly nod, not wanting to show any weakness. Jason may be down to earth, but he hates appearing vulnerable. (This stems from his pre-drowning days.)
He'd have the common sense to save the rest for later. Once you get brain freeze the first time, it can happen again and again. Besides, this way he gets ice cream twice.
Thomas Hewitt (Leatherface)
Ah, sweet pain. We meet again. Thomas is the only slasher who actually knows anti-brain-freeze techniques. He'll wince, but is otherwise calm. Simply put, he's an adult about it. (Cough, cough...looking at you BRAHMS...)
Overall, it's not a big deal. Drinking a glass of iced tea you'd brought him (for which he'd thanked you via kiss), he'd know he's flirting with danger. But on a hot summer day, in the middle of Texas? Let's just say, it's not the first time he's gotten brain freeze whilst chugging down liquids. It's a risk he's bravely willing to take.
He's okay with showing pain. Brain freeze is a perfectly normal thing to expect. Once recovered, he'll ruefully shake his head, using the condensation to cool his nape.
Michael Myers
Mind over matter. No. He refuses to accept this! The only thing that's allowed to cause debilitating pain is him. Not this delightful vanilla waffle cone.
He'd be forced to admit defeat. You'd rub his arm, telling him the best way to get rid of his brain freeze. He'd be pouting the entire time, but would follow your instructions. (Once recovered, he'd offer you a bite of his ice cream in thanks. This is a big deal–he only shares with people he genuinely cares about.)
Ice cream is now his mortal enemy. So irresistible, yet so deadly. He'd have to give it a grudging respect. (It is a worthy foe.)
Brahms Heelshire
Et tu, Y/N? (Dramatic betrayal.) What have you done to me?!?! Throws popsicle down, clutches head. He'd trusted you. How could you betray him? He'd whimper in his child voice, even though he knows it creeps you out. Prepare for him to go all-out, too. He'd want your sympathy and all the cuddles that entails.
Brahms holds grudges. "Damn it, Brahms, I told you not to eat it too fast!" You'd obviously tricked him. He'll remember this. One day, you'll be out on a romantic walk through the snow and he'll shove you face first into a drift. Brain freeze? Try full-body freeze!
No self control. Two minutes later, you'd catch him sneaking to get another popsicle. Don't try to stop him. Since he knows you hate his kiddy voice, he'll just use it to beg until you flee the room with a shriek.

YOU ARE READING
Slashers: "__" Would Include...
RomanceBehold, a cornucopia of slasher imagines! Want to read about a life with your favorite slashers? (Hint: click the link.) Multiple Slashers Per Post: Jason Voorhees, Thomas Hewitt (Leatherface), Michael Myers, Brahms Heelshire, and more.