As the title says, I think this would be really cool as a mechanic and add RP value.
And if they're going to add more robes and garments into the game some could be more on the seductive side and have a bonus to those specific checks.

It's something that always seems to be seemingly missing in RPG's but I mean there's even spells that exists to support it too.
And some deception checks could even receive a bonus from it.