No joke, the first time I hooked up with my current girlfriend, was right after I showed her my Lego City collection. I don't know what it was about it that did it, but I had only just finished showing them to her when she asked to go to the bedroom.
I'm not saying your Lego collection will get you laid, but it seemed to be the final piece that convinced her she was ready. So uhh, take from that what you will.