Sweetie Belle looked around her sister, Rarity's boutique for her with a restraining board with her. Rarity came to her main room and saw her sister. "Um... Sweetie Belle, what is that?", she asked.
"It's a restraining board.", Sweetie Belle said.
"Who's it for?", Rarity asked.
"It's for you, big sis.", Sweetie Belle said. "For you to lay down on."
Rarity blinked once. "You want me to lay down on it?", she asked. "Okay, make it flat and I'll down on it."
Sweetie Belle laid it down flat on the ground. Rarity walked over to the restraining board and laid down on her back. Sweetie Belle placed Rarity's hooves in the cuffs with her magic and locked them up. Then, she lifted the restraining board up with her magic and hung it on the wall. Rarity's heart was beating fast. "Sweetie Belle, why am I on the wall?", she asked. "You know I don't like being on the wall." Some criminals kidnapped her once when she was a filly and taped her to the wall on a house.
"You'll know once I get started, Rarity.", Sweetie Belle said with a smirk. "I'll be right back." She went off to gat a feather to tickle Rarity with. She came back with it.
Rarity's eyes widened. "Sweetie Belle, why do you have a feather?", she asked nervously.
Sweetie Belle didn't say anything. She levitated the feather near her right side and stroked it. Rarity laughed softly. Sweetie Belle levitated the feather to Rarity's left flank and moved it around in circles. Rarity raised her laughter a little higher. Sweetie Belle grabbed another feather, levitated them underneath Rarity's hooves, and tickled them. Rarity laughed louder, her hooves were her tickle spots.
"HAHAHAHAHAHA SWEETIE BELLE HAHAHAHAHAHA NOOOOOO!", she laughed.
"Coochie Coochie Coo.", Sweetie Belle teased. She levitated the feathers under her sister's forearms and tickled her there.
"AHHHHHHHHH SWEETIE HAHAHAHAHA NOT THERE!", Rarity screamed.
"There's no way you're getting away from me this time.", Sweetie Belle said playfully. She grabbed two brushes from her sister's drawers with her magic and attacked Rarity's hooves with them.
Rarity screamed with laughter as tears dragged down her face. "HAHAHAHAHAHAHA SWEETIE BELLE PLEASE HAHAHAHAHAHAHA I CAN'T BREATHE!", she screamed.
Sweetie Belle had to wrap it up, she unlocked the cuffs and slowly brought Rarity back to the ground. "You ok, Rarity?", she asked.
"I'm fine, Sweetie.", Rarity said.
"Are your back hooves ok?", Sweetie Belle asked.
Rarity lifted her back hooves one by one. "They're fine, sis, I know they're really ticklish, but I'm sure I'll try to get used to it.", she said.
"Well, I guess I'll be on my way.", Sweetie Belle said as she left the house. But, she came back for hug, then she left. "See ya, sis."