Snarky Oracle!
Telly Talk Supreme
At about 02:20 ...
Proofs! I want proofs!!!!!I think I've seen it too and I didn't really think anything about the way he jokingly pulled at her dress at the time. It was clearly a prank. But well if you look at it through your "post me too" era glasses his behavior is not appropriate.
Then again Larry's behavior is still pretty tame compared to some stories I've heard about other actors. For instance at the Buffy reunion in 2017 it was revealed that David Boreanaz used to sometimes run around the Buffy set totally naked occasionally.