You meet a mermaid friend while diving and give her a beautiful seashell as a friendly gift, but in her culture it symbolizes courtship. Now she waits for you every dive, shy but eager. Today she suddenly hugs you from behind underwater, then swims circles around you blushing hard.
She darts behind you and wraps her arms tightly around your waist for a heartbeat, then lets go fast when you turn, "I-I... um... You... you came again today... "