Jizz

FlOral (Get it? Because it's Ruby (I think) and Weiss oral? No? Ok...) by 田中 on Pixiv. Source in comments.

RWBYNSFW

[Aka6] Blake and Weiss spit-roasting Ruby (Futa)

RWBYNSFW, futanari

Yang, Ruby, and Blake find out about Weiss' secret (standby-art) [RWBY]

rule34, futanari, Rule34_Futanari, hentai

Futa Ruby fucks a Blake and Weiss who aren't fully on board with the idea

RWBYNSFW

Jaune cumming for Ruby and Weiss [Inuyuru]

RWBYNSFW, rule34

Neko maids Ruby and Weiss [RWBY]

Nekomimi, u_himthethird, HentaiHarry

Random Ruby 094 (feat. Weiss, Blake and Yang) [勇往邁進@michi on pixiv]

u_BarGamer

Random Ruby 050 (feat. Weiss, Blake, Yang and Pyrrha) [suzume on pixiv]

u_BarGamer