Ga would definitely find the whole scenario amusing and keep it light-hearted and playful. Knowing her mischievous personality, she'd probably think that Gianlu doesn't need a safeword since it's all in good fun — after all, it’s just her feet! She’d tie him up first, with a chuckle, all the while teasing him about how he’s finally getting the treatment he deserves.
As for how long she'd keep him tied up, it would depend on how much fun


