Another fellow artist, awesome. Being able to draw well gives you a nice edge; it adds dimension to your character. I've been drawing since I was 4 with almost 2 decades of professional instruction. I too have an album on FB with my artwork. First, it's an automatic 'in' with artsy girls. And some of the hottest chicks are in fashion design (and to a lesser degree graphic design/painting/etc). Second, if you have a tougher exterior, it softens you up. I'm Russian (certain stereotypes go along with this), pretty muscular/ripped, and have somewhat of an intimidating presence. Using art as a backdrop has gotten me laid plenty of times ('omg he has a sensitive side'). It's also an opener for girls. Yes, girls open guys too, but they like to notice and comment on something plausibly deniable just like guys do ('nice necklace where'd you get it').
I've gotten plenty of requests from girls to draw them something. If we're at a bar and I break the news to her, I grab a napkin and a pen and do a 60 second flower sketch for her - usually seals the deal.
I also use it as a default excuse to head back to my place 'let's get out of here, I want to show you my artwork'.
If you have something 'serious' with a girl or even if you want to get her back to your place, tell her you'll sketch her - nude. You can leave out the nude part at first, but weave in your artsy terms later like 'I love the beauty of the female form and I want to get better at it. Let me draw you, this can be our little secret and years later you can look at it and remember this night'. Or some BS like that.
It works great, just make sure you do it right. If you haven't fvcked her yet, use it as a means to seal the deal, don't put much time into it. If you've already fvcked her, it's a great present. Draw her naked on her birthday, she'll never forget it and all it costs you is some paint and some time.