Just a one-time thing. I'm sure she had fun but then that was that. It would probably make her blush if anyone asked about it. ~_~
Rihanne and Bess are friends, and Rihanne tends to tease Bess a lot. For some reason, Bess is the kind of person you want to tease... And I'm sure Bess will get her own back. Considering her special powers, she has lots of options for revenge :D