From source:
 
Tucking her little foals into bed the changeling mother whispers sweet hums to them as she extinguishes the lights to the room. Though before she could exit their room she heard them shuffle and whimper “ Don’t go mommy! “ one of them cried “ The darkness scares us “ whimpered the twin brother. Looking back to them she rubs her now brightly glowing belly. Fueled by her sons love for her and the brood of nymphs developing within her the normally pleasant glow brightens up chasing the darkness from her sons. “ You want mommy to stay with you? “ quietly calms them “ Scooch over dears “ as she climbs over the railing to settle in with her twins draped around her hooves and belly.