He fucked her up the ass because he wanted to try something new. He never expected that the experience would be so hot that it would become his dominant means of fucking! Her anus was so tight around his cock that even his masturbating hand couldn't compare! He thrust in and out her backside, causing both himself and her to cry out with joy!
With cocks crammed into both her pussy and her pucker, she can't help but to scream, for she's feeling the intense pleasure-mixed-with-pain that comes from double penetration! Still she won't complain because this is exactly what she'd been looking for, the kind of fuck that she'd remember forever!