And the 19-year-old continued, sharing her reaction when the reality TV starlet called her out:
[Image via Glamour Magazine.]
Chris Brown continued to double time RiRi this weekend by bringing Karrueche to the Agenda Trade Show in Long Beach where he was promoting his clothing line Black Pyramid.
We're guessing KT was just there for moral support since she was conveniently lurking in the background while Chris posed with fans.
With this latest news, we can only imagine the dramz that went down Sunday night inside My Studio, where both RiRi and Karrueche were partying.
Ch-ch-check out all the evidence (below).
[Image via Tumblr/Instagram.]