Tamsin is growing on me. She's fun and has a certain attitude. That bit where she drunkenly climbed fully clothed into Bo's bubble bath was a hoot.
Bo's response to that move was interesting, by the way. She was guarded and wary ("Tamsin, what are you doing?") but she wasn't obviously freaked-out and/or turned on either. You honestly couldn't tell how she would have reacted if Tamsin had started getting frisky . . . .