Roughly.

Paul's hips pull back as far as they can without dislodging himself from you, before slamming back forwards. You let out a confused scream, of both joy and happiness that your father is making love to you, and the unfamiliar and overwhelming sensation of having your insides stabbed over and over again. "Daddy! Daddy! Stop! Stop! You're going too hard!"

"I'm sorry, sweetie, but I can't! You just feel too good!" he cries, voice thick with remorse and grief, that he's hurting you so much. Thinking quickly, he leans back, puts your legs on his shoulders and adds power and speed into his thrusts. You yell out in protest, but he just grits his teeth and keeps going. "It'll be over soon. I promise. I need you to trust me on this, okay?"

Biting your lip, you whimper pathetically and nod. With a fresh burst of energy, Paul fucks you harder and faster than before, muttering apologies in between grunts. Intertwining your fingers with his, you hang on for dear life as white lights start to dance before your eyes. Paul's breathing starts to quicken and he tears his hands away from yours and wraps them around your legs instead. "Sweetie, sweetie, I'm gonna cum. I'm gonna cum inside you. I'm cumming inside you, sweetie. I'm cumming, Alice!"

You're not sure which burns more, your father's hot, sticky juice filling up your insides or hearing him call out your name as he cums. His body trembles as his cock pumps out his love into you, and you finally have a chance to catch your breath. Letting your legs fall to the bed, he rests on his arms on top of you, panting heavily. "I love you Alice, and I'm sorry that I hurt you. I promise you, that it'll be better tomorrow."

Holding his cheeks in your hands, you reach up and kiss his lips. "You could never hurt me, Daddy." He breathes out a sigh of relief, but noticing the sheepish look on your face, he asks you what's wrong. Blushing brightly, you tell him "Well, I was just wondering how long it will take you to get ready again tonight?"

Paul lets out an exhausted laugh. "I'm not as young as I used to be, so it might be a while. Why?"