It finally begins to break up after what feels like an hour. It's very hard for your new mother to let go of any of you it seems, as Asgore chuckled softly and says, "You will have to let go of all three of them at some point… They do eventually have to go to bed after all."
Toriel blushes and reluctantly lets go of the three of you. She gives Asgore a long look of consideration, then gains the barest hint of a smirk as she says, "So you say, but I have very little doubt that these three wouldn't mind sharing a bed with me."
For the barest hint of a moment, she gives you and frisk a knowing wink, sending shivers of arousal through you both.