Letting our first daughter pick her baby sisters name?

Our daughter is 5 years old & her name is Priscilla. We chose her name because we love elegant, royal sounding names. We wanted her name to be really feminine & princessy. Now we’re pregnant with our second baby! If this baby is a boy, his name will be either James or Tristan. If it’s a girl, we planned on using the name Alexandra, but now we aren’t so sure because we wouldn’t want her to be called Alex, Allie, or Lexi. So we went back to the drawing board. Our daughter has been telling us this whole pregnancy she wants her baby sister to be named Megan (if it’s a girl). At first we thought it was too basic but after thinking about it we’re starting to fall in love with it. It’s classic & beautiful. Plus it sounds really good with the middle name we want to use!

What do you think of Priscilla & Megan for sister names?