Of course
(and when you say jealous, is it over Lea or Aqua? ;D)
Haha, Lea would be like Reno in that regard if he did. ;D
Lea: "Woah, you have some biii--"
Isa: "Lea!"
Lea: "--Shoes."
Aqua: "Um..."
Lea: "So, nee-chan, you wouldn't happen to have some free time, would ya?"
Aqua: "Well, I'm pretty bus--"
Lea: "Oh, you seem like you would be. I just wanted to ask if you were free, maybe I could buy you an ice cream?"
Aqua: -blushes- "Ah...Um..."
Isa: -grabs Lea by his collar and blushing- "Lea, we're busy. You have no time to fail at flirting." -drags Lea away-
Lea: "H-hey! -waves at Aqua- Guess we'll have to reschedule! Bye nee-chan!"