She does beg.

Carmen glared at her brother defiantly for several long seconds, but at last, her valiant effort proved to be in vain. Once she realized Danny wasn't going to take no for an answer, she crumbled like a house of cards. "Fuck... Please destroy my pussy with your big dick, big bro? I'll do anything you want, just fuck me for God's sake!" she pleaded shamelessly.

Carmen's compliance was quickly rewarded, however, as Danny's shaft was instantly lodged balls-deep inside her. She gasped loudly; while the sudden intrusion didn't hurt her it was very sudden! She grinned. "You're a fuckin' demon..." she purred as he rested, nestled deep inside her, "God, this turns me on. Shoulda just let you dick me from the get-go, huh?"

Danny's face was twisted into an evil grin that almost gave Carmen pause. Almost. Instead, it gave her a tingle down her spine like no other. What a thrill! Her own brother's dickhead was kissing her cervix completely bare! Even though she rarely ever did bareback because of the risks, she still loved the risk. Something in her fucked up, little brain just loved the fact that her flesh-and-blood could wind up putting a baby in her fertile snatch.

Eyeing his sister hungrily, Danny pulled back before starting to fuck Carmen. In-out. Pause. In-out. Pause. In-out. Pause. Each thrust was hard and fast, forcing a moan or a gasp from Carmen as she writhed in pleasure, but then he paused to savor her. He leaned in close, and picked up the pace. In-out. In-out. In-out. "I'm gonna blow my load balls-deep inside you," he whispered.

Carmen's eyes went wide. She could feel him throbbing now, ready to blow his load. "No, don-" too late. His balls smacked hard against her one final time, and remained planted there, throbbing and twitching violently. She looked hatefully into her brother's eyes as he filled her up. No sense fighting back; the damage was done. He just grinned down at her.

Danny knocked Carmen up, alright. Something about giving in and begging him to fuck her seemed to awaken his desire to breed. After she dropped out of school, Carmen tried like hell to make him take responsibility, but she couldn't. What would she tell everyone? That she had willingly fucked her own brother, but he didn't pull out, and now she wanted him to take care of her and the baby? No, he got off scot-free while she got an **** baby. He finally got a well-paying job and put his degree to work six months later, and Carmen never got a penny. He was sure to send his nephew-son a postcard every now and then, though...