The next morning

I wake up. I feel like ass. My asshole is sore for some reason and I reek like one of my cum socks. God, what the hell happened last night? I can feel something wet leaking from my asshole and down my leg. Did I use the bathroom in my dream...WHO THE HELL'S PANTIES AM I WEARING?!? I fully woke up. I was wearing Jane's Victoria's secret panties with "I <3 boys" on the ass AND IT WAS SOAKED IN CUM. These panties were ruined. They were stretched to hell up my ass. Dry cum was everywhere on the front and the back! Fuck my sister is gonna kill me if she finds out.

I look to the window at the bright shining light of a new day. THIS WASN'T MY ROOM. In a panic I ripped off the sheets of my sister's bed and ran to the laundry room. I needed to clean these sheets before my sister walks in. I can even just blame mom trying to clean her sheets while she was gone. Okay, I got the sheets loaded with double tide pods. I'm in the clear.

I headed back to my room so I could change and get cleaned up. MY SISTER IS SLEEPING IN MY BED. She yawns and stretches as she notices me. "Good morning Sissy. I saw you enjoyed yourself in my room and I needed a place to crash. Hope you don't mind." I was stuck in shock. I couldn't think of a proper response. I muttered "No problem..." She sits up, "Those panties your wearing are actually yours btw. I bought them knowing you couldn't resist the naughty writing on the ass." I responded awkwardly "umm...thanks for the panties"

"I got one more gift for you." She hands me a piece of plastic. A TINY PINK CHASTITY CAGE!?!