She's always been a B-cup. Of course she'd show a little cleavage when she leans forward, and she's wearing tighter clothing in these two videos too. But who knows for sure? 
-The content MUST be from TikTok, do not post slips from other platforms.
-You MUST include profile names / link to the profile, or make every attempt to include it.
-Include timestamps if you post a long video or a full live video.
-Make sure ALL girls posted are 18+