Yes

You pause in shock as you notice this is definitely not your case, but must belong to one of your family members, then as if on cue you hear a knock on your door. Startled you quickly zip the case back up "Y-yeah, who is it?"

"Its Blair, just checking on you are you coming down?" as she opens the door and walks in wearing her bikini she notices you still have a shut suitcase on the bed. "Are you serious you're not unpacked yet? Come on were all enjoying the sun out by the pool let me help you then we'll head downstairs." Dumbstruck by your sexy sister you forget to say anything just staring at her mouth agape as she walks over and unzips the case. "Uhhh" she pauses to look at you for a second unsure of what to say but quickly changes gears and dumps everything out onto the bed "OK come on lets be quick about this i'll check your wardrobe and you hand me stuff to hang or put in draws." "U-uh y-y-yeah OK" you quickly root around and fold your underwear while passing shirts and pants to you sister to hang. As you get to the bottom of the pile you see the red lace nighty and panties, handcuffs and a small (yet still larger than you) dildo. Bright red and embarrassed you decide to ask Blair "Uhh is this your stuff?" "Ha no nice try, if your seeing someone its fine to tell us, no need to be shy about it, a couple of my sex friends keep toys and stuff at their place too, saves me bringing it every time." As she leaves the room she looks at you "While you find a good 'hiding place' i'll be downstairs, now hurry up or mom will be annoyed."

Confused you look down to the lingerie in your hand and the toys on the bed "Forget it i'll ask about it later" you shove them all in a draw and get changed into a pair of swimming trunks then head down to join your family by the pool.