There is some point Ash is calling you for the beach party. For this party you need the skirt, but you can buy it before when reaching 450 corruption. Perhaps the missing beach party event will make the skirt unavaible in wardrobe?
Stucking on Viki´s photo´s? There are some events triggered behind Viki´s photo's. Some are only if you choose see pic yes, other are only if you choose see viki pic no. Perhaps you can avoid the stuck by chossing looking pic's no? Mostly stucking at this stage is wearing no pants starting library events or wearing black pants when Branda take your pants.