What can I do about the guys being distracted by a new girl in D&D group?


We recently got a new party member, and she is … well, extremely distracting if you catch my drift. As the DM it is frustrating, because all the guys are trying to flirt with her, and shower her with items in game. The whole thing is quickly becoming a mess. (One even attempted to grope her, In the game and real life, an issue being addressed in a separate question) Seriously, I have no freaking idea what to say to the guys, and how to do it, the whole thing just seems so … awkward. Not only that, but I too have found myself attracted to her. How do I get my own, and my group’s hormones to be put away so we can play the game and have fun; which is what I’m sure she is trying to do also. We are a bunch of 8th and 9th graders and we are all friends.

Can someone help me?