Ask her to accompany you back to your cave

From Create Your Own Story

as you enter the cave you feel a pull towards the mermaid "you can feel it too cant you?" she mumbles you say "yes"

do you:

-let the pull control you and have some fun with the mermaid

-ignore the pull

-Tell her you want her help to return to the surface world

-Realize your whole adventure was a dream, and wake up back in bed, next to a well-hung guy