This girl actually gets tickled an awful lot by her boyfriend. There are numerous videos on their TikTok of him doing shit like this. There's one where he uses a broom to trap her in an office chair and tickles her sides and ribs, there's another where he tickles her while she's trying to order at a drive-thru, and one where he's playfully tickling her on the couch as part of a skit.
They have so many videos on TikTok it would take forever to find all these, but they're really nice videos. She seems to be really ticklish, he loves tickling her and I get the impression she kind of likes it too, if just in a playful way.