Big Bang Theory plot advice

This has probably been said but I have not read it. So far Raj has not gotten a steady girl. I think for equal distribution of romance they need to give Raj a girlfriend.

But I had forgotten. It hit me the other day they have already introduced the perfect girl for Raj, Sheldon's sister. I forget her name. I suppose I could look it up. But now that Raj can talk to women it is time to reintroduce her.

We found out when she was staying at Penny's that she found Raj to be "the cute one". He missed out because his medicine wore off. I forget how he came to be able to speak to women. But he can now.

She can move out to CA, stay with Sheldon for a few days, that won't work, then move in with Penny again. From there we can work on the relationship. That should give the writers plenty of fodder for misdeeds and jokes about Raj's ineptitude. I like it. But this is so obvious it has obviously been though of before.