It had been a while since you had fallen, and Toriel had found you.
She brung you to her home, granted you a place to stay, and looked after you as if you were her own.
After a long day of exploring the ruins and socialising with the creatures, you passed out in bed. Hours later, you awaken to find yourself laying on your back, yet you felt a strange sensation on your front and face, almost as if you were under a pile of soft pillows.
As you opened your eyes, you could see that Toriel was directly atop you. You could feel her thighs over your legs and her fluffy arms over yours. It seemed as though she was peacefully asleep, just as you were moments ago. You couldn't move your head due to the fact that your face was buried in Toriels chest due to her position over you.
The feeling of Toriel's warm body enveloping you was oddly pleasurable. After a few moments of laying there enjoying the feeling of her body rise and fall against you, you attempted to shuffle out from under her before realising she had you completely trapped under her.
"..."
The monster snored. You had the feeling you would be there for a while.