MY SOLUTION TO YOUR PROBLEM~
Get her to try it, then if she gets into it, slowly let her in to your buddies, and she how she acts and what they think of her. CUZ guys they are always right when it comes to girls like that. If they like her, then its like you can get to have the best of both worlds, knowing you will take her back to your place and make love then say bye and then do what you please. SEE you get to make her happy because you are spending time together, and you can still smoke pot with your buddies.

THEN END