"Relax, baby," I said, sliding my finger in and out of her ass. "The tenser you are, the worse it will hurt. Just close your eyes, think about something happy."

"Okay," Heather said, closing her eyes, inhaling and exhaling.

I pulled my finger out of her ass, wrapping my fist around my cock, getting a good grip on it. I brought it up to her crack, sliding the shaft between her cheeks. She clenched.

"Relax, baby," I repeated. "Reach one hand back, spread yourself open for me. It'll hurt less."

"Okay," she said, reaching one hand back, pulling her ass open. I could see her rosy little hole, pulsing and...