It would be great if they add them to TOR.
I think that people, which want to play aliens already beat most of class stories and complete their romances with companions,so why use this exuse about Leya kissing ability.For spieces like Kel Dor, devs could just switch off flirt options for them or make kissing cutscene fade to black before aliens lock their lips,masks and etc with companions, like it was in KOTOR.