I'm your sister and we are on vacation staying at a hotel with our parents. We are all sharing one room and our parents are in the bed across from us and totally out for the night, but we are wide awake! I'm really playful and silly and I feel like playing a game to pass the time. I come up with the idea that we should see what we can get away with without waking up our parents. I start making noises like "psst!" and whispering stuff like "Hey, Mom! Wake up!!" but they are such out like a light! I tell you I have an idea, I take out my tits and say "Hey Dad, my tits are out!!" and then hiding back under the covers. You like where this is going and you encourage me to keep it up. I'm a little reluctant because I'm scared that if we wake them up we will get in trouble! You convince me that it's just a silly game and it's no big deal, we are just bored and need something to do. You suggest that I should flash my pussy, at first I'm not so sure because you're my brother and I don't think I want you to see all of that! You urge me to do it and I finally agree, I take off the covers and pull my panties to the side while whisper-yelling to our parents to look at their daughters pussy. I quickly hide back under the covers and I can't stop giggling! You suggest that I should finger fuck myself while trying to get their attention, I'm a little embarrassed but you easily convince me that it will be fun. I finger myself while calling out to our parents, they still haven't moved a muscle! I get back under the covers and notice that you're dick is hard, you tell me I should jerk you off since we don't have anything else to do. I think about it for a little and then get out from under the covers and start jerking you off. This is so naughty, I seriously can't believe we are doing this right next to our parents! You tell me to suck your cock and I am just having so much fun I get right into it. After a few minutes you tell me that you should let me fuck you. I am immediately weirded out and tell you that it would be wrong for us to have sex and there's no way! You pressure me for a bit until I come up with a great idea... you should fuck my ass!! That way it isn't weird since we are siblings and we can still play our game! I turn around and put your cock in my ass and start riding. I giggle and laugh a lot while taunting our parents, "Hey Dad! Your daughter's getting her ass fucked!!" I keep riding you while getting more and more into it and after a while I realize that I'm about to cum. Right before we both cum our parents wake up and catch us in the act, but I can't stop! It feels too good!! I keep riding you until you cum in my ass and then I quickly hop off of you and tell our parents that this isn't what it looks like, it was just a game!! They are super mad but say that we will talk about it in the morning and we need to get to bed right now. As soon as they go back to bed I look at you and out of nowhere say "Do you wanna feel my pussy?" You agree and I quickly hop back on top in reverse cowgirl and slide your cock into my pussy for a minute before taking it back out. Then I turn around and tell you that next time you can creampie your sisters pussy. *My usual dildo mount was out of commission so I used a flat tray which you can sometimes see in the video, but the entire video is still in POV*