You let her continue.

You thought she would get bored soon, or at least want a different position. She only changes her pace and fucks you so fast she is almost like a vibrator in your butt. You can't help but moan at the feeling. Your ass feels so good, but your whole body is vibrating. Your titties jiggle inside of your bra, your balls shake, and your belly ripples. You put your hands on your lower back. Then you start pushing your ass back hard. Kako doesn't seem to mind and keeps on at her quick pace. You slide your hands downward into your wet and steamy buttcleavage. You search for the quickly moving shaft and feel it as it moves in and out. You notice it swell and you get excited as her monster cock starts cumming another monster load. She presses into you, breathing hard. You see your front swell upwards some more. It still does not seem to sag past your waistline. Kako does not resume her activity.