Ya used to love the shit myself, then the comedown got to be too much for me. I would advise quitting for a few months if you start going back to get more after a teener or an 8ball between 2-4 people. Definately don't smoke it, but if you wanna try something cool with it that nobody's mentioned besides packing a hit at the tip of your cig( I find this is a complete waste) try having your girl sprinkle a bit on the tip of your cock when she gives you head. She'll easily be able to deepthroat if their's enough on there and she's into that, plus it feels pretty cool for yourself aswell. But a reminder, any heart related problems can be very dangerous while having sex on coke or any other extreme stimulant.
lol check with your doctor before trying jk