By letting him fuck her ass

"I really want you again," she hissed in John's ear as they made out on the couch, "but now that we know for sure, it might hurt the baby...OUR baby..." she tells him, smiling at him.

"But since you gave me the one thing Mike didn't want to give me, I'll give you the one thing I never gave Mike...or anyone, actually. Fuck my ass, baby."

"My pleasure," he tells her as he spits on his dick, lubing it up as he prepares to take Carrie's anal cherry, wondering how much luckier he could possibly get in life than to have rescued, met, fucked, fallen in love with, and impregnated Carrie Underwood, all in less than five days.

"FUCK...YES...OHGOD..." she purred as he pushed his dick into her tight ass, her cheeks clinching around his dick as he slammed it and out of her, feeling his orgasm approaching much quicker than he would've thought, since he had literally done nothing the last four days but fuck Carrie.

"YES...YES...OHGOD...hurts so good..." she hissed as he buried his dick in her ass and held it there as she wiggled it and slammed it back on to his cock, her pussy spraying her cum as she came again, forcing his own cum to have to go somewhere soon.