As Grace pushes me on all fours on the bed, she gets some lubricant and gently rubs some around my anal hole, after pushing my skirt out of the way. I suddenly realize what she's going to do, and I start to panic, but she hushes me softly, saying it will all be okay. Before I can make another sound, two of her fingers push inside, spreading more of the lube.

Next thing I know she lifts up her own skirt and her manhood, hard already, pops out and lines up with my hole. Then she slowly pushes in.

It gives a bit of a shock and I huff, but she rubs her hands over my hips to soothe me. And I can feel her slide deeper inside me. Muscles that I never knew I had stretch wider, then slowly contract around the intruder, massaging it, slowing it, then releasing it to suck it in deeper. And the feeling goes from painful to uncomfortable to welcoming as a moan escapes from my lips.

It gives Grace the confirmation to continue on, faster and with more power, and I can feel her move back and forth