Another fun vignette of yours. I'm not totally sure I buy Nani having no reservations about coming on to Lilo, but Lilo suddenly kissing Nani seemed in character, given that Lilo is impulsive and doesn't have much understanding of what most people consider to be appropriate behavior. There were a couple of phrases that were unclear (like “whipping her face”), but I enjoyed it overall, and I'll definitely be checking out the sequel.
I think it's a great story. maybe if you expand it into more chapters it would be way better.