You would probably get tangled in her hair even if you didn't do anything, but you still grabbed onto the strands you could for good measure as your giantess friend stopped moving, wondering where else could you have gone. Even if she was quiet the force you were sent flying with was enough to give you enough momentum to ride that strand like a vine and swing towards what looked like an unpenetrable pink jungle.
You thought for a moment if you could move using her hair until hitting Pinkie Pie's shoulder and then get her attention, but the plan was quickly ditched and replaced by "hang on for dear life" because you just had so little control over the world around you. The simple act of her turning around to see the rest of your room sent you swinging again and once she stopped, made you start hanging onto as many strands as you could in order to stop such a violent movement from happening with every action. Because her hair was still a bit dishevelled and greasy it was a tougher task than expected, and it humbled you a bit to think anything she did could affect you so much without even noticing.
"Is he there dearie?" The voice of Mrs. Cake asked from the first floor
"It looks like he wanted to play hide and seek!" Pinkie Pie shouted back and you would have covered your ears if you weren't busy still hanging there. Despite being behind her head her voice still sounded so powerful and deep, and you could actually perceive a tiny vibration from her head after she spoke. Somehow, it actually encouraged you to resume your plan and try moving on this pink forest, seeing that below you there was a lot more hair to grab onto and those tiny shorts she was wearing provided an attractive last resort, but as much as you wanted to go down there you wouldn't dare doing it without her consent.
"You can search for him later, your breakfast is ready" Mrs. Cake shouted and your plan was again interrupted by her shout of "Coming" and the semi regular wobbling movement of her steps that made her hair bounce a bit and you find yourself in less stable terrain to advance. At least you knew where you were headed to which provided more opportunities to get noticed, so you decided to stay put until Pinkie Pie made it to the dining room
Once she sat down, things became easier again.
"So he's not around? I wonder where did he go" Mrs Cake said
"To buy me a gift!" Pinkie Pie suggested excitedly, you rolled your eyes at the comment, but kept working to reach her shoulder feeling you were finally making some good progress. On the distance you could also hear Mr. Cake tending to his foals while the ladies had breakfast.
"Maybe something for that rebel hair of yours" Mrs Cake teased and got the reaction she expected, but not one that benefited you
"What? my hair is fine! I wouldn't reject it though" Pinkie said while shaking that long pink mane of hers for dramatic effect, which again sent you flying against your will.
What happens next?