Bella and Frank are teachers. Tantric potential is what they claim to teach. Energy flows towards their harmonious Queen. Ecstasy is the way to server her, moving bodies working towards pleasure and her satisfaction.
John's new among them.
He takes to their teaching immediately.
They share him, take their turns with him. He gives and submits as easily as he takes and grasps and wants.
In a culmination of orgasm, the room full of moans as they're watched by the learners, the Queen is gone with a screech. The spells is broken.
"Harmonious Queen, my ass," John mumbles, extracts himself.