Old methods are the best, if your meeting up for the first time get her to swing by your place to pick you up, dont be ready when she arrives, or just say your not and spend a few minutes pottering, invite her in so she can have a look around. Then since is familiar with your place she will be more comfortable going back, hey did you see X Y Z when you picked me up, come back and i'll show you it (code word for your penis) you will love it (penis). lol. "okay" (yes I will love it).
Like has been said, just dont make it a big deal, like it's an everyday normal thing to do(this works the same with so many things, even getting them to try anal

) I discovered this by accident in my youngerer years, I was with some rather attractive female friend who had a boyfriend and I asked if she wanted to come back for a few drinks since the clubs were closing and the night was still young (3am lol), completely relaxed, wasnt an issue or a big deal because I ACTUALLY just wanted to have more drinks.
Got back, had a drink little bit of a chat and she just gets on top of me in the lounge, thought wtf for a the briefest of moments then fucked the shit out of her in the living room and in the bedroom(gotta love not being able to come when you have had alot to drink!) Afterwards I asked her what it was all about and she said to me it's usually a given when any excuse is made at the end of the night to come back you want to fuck, but she said I did it in such a casual manner she was curious and figured she could just leave if she wanted too, when we got back and I acted like I didnt give a shit about trying to seduce her, it drove her a little nuts and turned her on and said that I was smooth as fuck. Which was news to me, but I realised I was onto something here! Attitude and confidence is everything!