Interesting conversations with my roommate

My roommate has a very... interesting family. This evening, she ended up explaining a conversation she had with her five-year-old niece:

RM = Roommate
RMN = Roommate's niece

RMN: What do boys do with boy parts? What do girls do with boy parts? What does anyone do with boy parts?

RM: Uh, you're like five, how do you know anything about boy parts at all?

RMN: I know boys have them and they're called peonies.

RM: ...yes. Yes, they are.

RMN: But my mom says peonies smell nice.

RM: Urk.

RMN: She also says she likes to put them in vases, but wouldn't that hurt? I once stuck my foot in a vase and tried to smell it and it hurt, so I think it's got to hurt.

RM: Uh, yeah. I think your mom's talking about flowers. There's flowers called peonies.

RMN: *disbelievingly* Okay.

*conversation swiftly changed*