About as bad as you'd imagine.

With the frozen payload released between her buttocks, Blake body immediately tensed up even further as a cold sensation spread inside her panties. Her ass was instantly covered in a thin sheet of ice with some of the crystalline particles slip further past her butt cheeks and brush against her now tightened asshole. The rest of the Dust rapidly coated her panties and shorts, freezing them so thoroughly that the garments became brittle enough to shatter to pieces... Which is exactly what they did.

So with Blake now suffering from a freezer-burned butt -freezerbutt to be scientifically accurate- and her lower attire reduced to broken shards, Yang was no longer the only one having to deal with a considerably humiliating crisis.

"AHHHH! COOOOLD! SO COLD!" Blake cried out in alarm as she firmly clamped a hand over her crotch, desperately trying to prevent the spreading ice from coating her genitals. Yang's plight was no longer a concern to the faunus, as she needed to prioritize her own rapidly worsening condition.

And while this was all going on, the leech had not let up on Yang in the slightest.

"SOMEONE GET IT OFF ALREADY!!!" the blonde demanded as she began to buck her hips, her body's natural desire for pleasure causing her to unconsciously react. "Oh god! It's coming~!"

Finally lifting her head up after having faceplanted due to slipping on Yang's urine, Weiss was just in time to be sprayed by the blonde's love juices as she reached her first climax.

"CUMMIIIIIIING~!!!!"

With Blake now dealing with her own issue, Ruby being essentially useless, and having Yang's squirt dousing her face, Weiss was far beyond the point of losing her patience.