how old is lilo's sister in lilo and stitch

The fights continued, but they were becoming more and more drawn out. The weakest combatants had all been culled in the first three rounds, and now the remaining warriors were going at it with everything they had. Eventually, Noah’s first target entered the arena. He was a young man, spirited and garbed in plate mail, having won his fights with hard-won determination and effort. His name was Falco. Noah followed him outside, the warrior unaware of his presence. On the other end of the ring, his opponent arrived, another man, a few inches taller and years older, wearing dark clothes and an amused smirk upon seeing Falco. Both were brawlers, entering the ring without weapons.

Once again, Seraph thought back to Foley, and how they faced off in their duel at the academy. The stubborn dwarf had withstood a similar attack from Seraph, deflecting Seraph’s light blast even while spitting up blood. Seraph kept that image in his mind and slowly began to approach Phune. Now, it was a war of attrition to see who would lose their strength first. Would Seraph falter and be annihilated, or would Phune’s burning river turn into a dripping faucet? With every step Seraph took, that question echoed through the minds of everyone observing. The audience sat with bated breath, waiting to see if their prince would succeed.

"Tsk! ~l-like i'd ever have sex with YOU.. im your school bully.. idiot.. you aren't supposed to crush over me.""Ugh.. I see you met my mother.. dummy..""S-shut up! its not like ..I like you or anything!- ngnh. just. take your pants off.. now.,""Ugh.. you know .. you're way older than me. you can get in a lotta trouble for this.." "..Old perv.."