How many people did she sleep with already for her to be so used to that 😐 She's a first year, no ? So she's just out of middleschool
She could've slept with nobody and A. Seen porn with it B. heard peoole like friends or family talk about it C. Had a class on sex ed D. Seen packages at a corner store or pharmacy that explain how to apply and put em on and/or E. Simply has done it at least once and learned at some point. This is all so utterly normal.
Also it's hilarious but condoms ARE good even if she doesn't have a dick, they're for penetration so even if she's using fingers (or a toy for example) a condom would protect the receiver from any detritus on the fingers, knuckles or nails. Not to mention that it could provide a smoother and better feeling with the condom. That's not even getting into the various shapes and shit you can get on condoms (like them being lubed or ribbed).
Now the time comes for the best bit... is it funnier to extrapolate those condom jokes as her having a dick or her thinking the pres has one lol (it's funny either way)