Hey guys, my girlfriend is going to be on two company partys
one christmas party and one kick off party in the new year
The second party is right when shes ovulating and I guess there will be alcohol and some coseplay (it's a motto party)
She usually never goes to partys, but this is a work thing, where everybody from work goes she says and what should I do? I can't forbid it.

Any tips on how to stay calm?

I mean you can never know what happens at such events.
How do you guys keep a cool head and not freak out?