He's still a bit unsure

Derek was having the most amazing sexual experience of his life. He had never imagined anything like this happening, and it was almost too much for him to comprehend. Sure, he had fucked Isabella a few times -- and that was incredible on its own, her long lean body, perfect tits and ass, and an insatiable craving for sex -- but he had never had a threesome, he had never had almost instant sex with a complete stranger, and he had never fucked a white girl.

Is this a dream? he started to think. It had to be. He would wake up soon, and this would all be a blurry memory.

Just then, Andrea dug her fingernails into the flesh of Derek's ass. "Fuck my mouth!" she called.

Maybe not a dream after all? He thrust into her mouth once again. This girl is so fucking in charge ... maybe I can take some control? He cautiously put his hands on the back of Andrea's head, and joined her movements as she bobbed back and forth on his cock. Andrea, sensing his touch, increased the energy of her moves in the hopes it would encourage him to be more physical. Derek may not have totally understood, but he took the cue.

He grabbed her head more forcefully, and altered Andrea's rhythm on his dick. Not that she was doing anything wrong, but he knew that a slightly slower pattern, and lingering every time his full cock was down her throat, that would give him more pleasure.

Andrea had no qualms adjusting her movements to suit his interests. She followed his guidance, and even after he slightly released the hold on her head, she continued his method. If she hadn't had a mouth full of cock, she would have smiled, recognizing that Derek was now taking some ownership of the moment.

That's more like it, she thought, but when is he going to just throw me down and fuck me?