Cats love their cream
As well.
Several days had passed since the Weiss cream incident and Yang kept her eye on those two as much as she possibly could. She was able to accept that Ruby was growing up and was entering the age where she would naturally be curious about sex but Yang couldn't wrap her mind around the idea that her sis was a ladies' lady and had somehow managed to get the uptight Weiss to unwind enough to get her into bed.
Searching the entire campus failed to locate Ruby, Weiss or for that matter even Blake so it was with a sinking feeling that Yang returned to their dorm room. "I better not find Ruby and Weiss making out again or I'm seriously going to have to hurt Weiss." Yang quietly promised herself as she reached their door. Reaching the recently repaired door from when she broke it down, Yang tried the door only to find it was once again privacy locked.
"Ruby! Are you in there with Weiss?" Yang hollered.
"No Yang. I'm in here." Blake's voice called back.
"You aren't in there having Weiss Cream are you?" Yang asked jokingly.
"Certainly not."
Yang chuckled to herself and started to walk off but stopped and came back to the door. Knocking again she said. "You are not having Rose cream either are you?" Still joking. She started to walk off again but paused as she noticed that dead silence was the answer from the room.
"No… Couldn't be." Yang muttered and turned to go when she heard a breathily moan come from the room. A moan that Yang recognized as Ruby's. Of course before she only heard such sounds when Ruby ate a freshly baked chocolate chip cookie. The moan became muffled, yet again just like when Ruby had cookies and had stuffed her mouth full. Yang sighed and taking her fist she lightly punched the door causing it to pop open. She managed to get a brief glance at a hastily dressed Blake exiting through the window. Rose petals were once again drifting in the air and also once again a naked Weiss sitting in her bed with the sheets pulled up to her chin.
"Well this is getting to be a thing isn't it?" Weiss asked dryly.
"If Blake was… With Ruby… What was Ruby doing…" Yang could only stutter.
Weiss didn't reply but merely raised an eyebrow.
"NOPE. NOPE. Don't want to know. Don't want that mental picture of my innocent little sister doing things like that in my mind. Don't tell me."
"Wasn't going to." Weiss replied with a bit of a smirk.
"Just tell me where my sister is."
Weiss leaned forward and gestured for Yang to come closer. "Well… She is… Well that is to say she has…"
Yang moved away from the door further into the room to hear what Weiss was whispering. She more sensed than seen a flurry of rose petals shoot out from under Weiss's bed and out the door of the room.
"Has bolted out of the room once I got you to move far enough to give her an opening." Weiss finished with a definite smirk on her face.
"RUBY! You get back here! We are going to have a talk about this right now!" Yang yelled as she ran to the door to look into the corridor. Of course all that was to be seen was a few drifting rose petals.
"And don't think I don't have a few words for you as well Princess." Yang growled as she came back into the room. Only to find it now empty. Walking over to the window she spotted a fading glyph near the ground that Weiss had used to break her landing when she had jumped from the window. Of Weiss there was no sight of.
Yang just stood looking out the window before she said to herself. "I hope Weiss had time to get dressed before she leapt out the window." She muttered to herself.
Yang sat down on Blake's bed and put her head in her hands. With a growl of frustration, she rubbed her hands up and down her face a few times. "I can't believe my baby sister is becoming such an expert on seduction! First Weiss and now Blake?" Yang punched the bed. "I wanted to be the first of us to get into a threesome and I was beat my sister?!"