Priscilla is the baby of "Real World: San Diego," but the bubbly 19-year-old definitely doesn't act her age. She's constantly defusing arguments, and aside from Sam, she was really the only voice of reason when everyone turned their backs on Frank for bringing a guy home. She's wise beyond her years, and we're seriously impressed with the way she's handled things thus far. Don't agree? Well, here are five things that make us think she's the most mature person in the house.

Designated Driver: Unable to attend 21+ clubs, Priscilla acted like a soccer mom and drove around her drunken roommates. She even made multiple stops in the same trip, which is something cabbies hate doing!

Encouraged Communication: Just about all of the roommates favor the silent treatment as a means of handling conflict, except Priscilla. She happily encouraged everyone to sit down and problem solve. It's such a novel concept!

Mama's Girl: She's way close with her mom--during the premiere episode they even had some serious sex banter. Later, she invited her new San Diego crew over for Independence Day, which proved to be a great bonding experience for everyone.

Stopped Unnecessary Hookups: 'Cilla resisted Nate's palpable charm when he initiated an impromptu makeout session. Yeah, she kissed him for a bit, but she recognized the sheer awkwardness of it and pulled away.

Didn't Trash Talk: Even though her roomies ditched her on the first night, Priscilla didn't waste time talking badly about them. She just got over it. This, my friends, may be a RW first.

+ Priscilla is a pretty awesome faux-mom, and girl's not even 20, but will her good girl behavior last? Let us know what you think of her motherly tendencies in the comments.

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