I'm taking my girlfriend paint balling......should i worried lol?

I think it's cute how you're worried that she'll get hurt. But I've been paint balling, either way, she'll get bruised, you can minimize the size of the bruise just by making sure that she's not wearing anything that's showing skin, and having cushion-y clothes, like a hoodie as you said she should stay away from jeans, as it's pretty tight on us girls, so it would be like hitting directly on bare skin.. Don't let her take off her mask, that'd be disastrous LOL. But in the end, she'll have fun. It'll be all worth it, it was for me! (: Hope you guys have fun.