First of all, this will be a really short update, but here you go. Ok, so I didn't come up with most of these I found most of them here: http://bbcsherlockpickuplines.tumblr.com/takeacab but I hope you guys enjoy! Also, apparently season 4 of Sherlock is going to happen for sure.
The Pick Up Lines
Sherlock: Why do I need to know about the solar system? It's wrong anyway; my world revolves around you.
Moriarty: I have an app that can steal anything, including your heart.
Lestrade: I think I need a shock blanket.
John: You had me at "Afghanistan or Iraq?"
Sherlock: I'm never bored when I'm with you
Molly: You can x-ray my possessions if you want.
Sherlock: You're the king of my mind palace.
John: Of course we won't be needing two bedrooms.
Sherlock: I don't know anything about the stars unless they're the ones in your eyes.
Irene: You have the key to unSher-lock my heart.
Sherlock: Is your name Reichenbach? 'Cause I'm falling for you.
John: I can't have U.M.Q.R.A. without U.
Sherlock: I didn't need five minutes to feel that we had a special something.