You can't help yourself.

As you look at Isaac's stiff cock, you involuntarily lick your lips and straddle him. You watch his face as you lower your dripping twat onto his cock.

"Oohhhh..." You groan as Isaac's cock starts to find all your pleasure points. When you feel the tip of his cock hit your womb and his balls nestle under your ass, you know that you've taken all of it.