Dominating Douglas

Douglas was snoring lightly. The windows were open, and it was a lovely day, so they were airing the house out. Mira could hear Rachel and Ryan a room over, working on their studies. Well, time to give them a study break, Mira thought.

She reached down, tugging Douglas's boxers down, revealing his ass. It wasn't so bad, really. Tight cheeks that had never seen the sun. A tight pink little pucker buried within that was quite snug. Those big fucking balls, and that little fucking shaft.

Douglas murmured lightly as Mira started to massage his ass, squeezing the cheeks roughly, spreading them apart. She was already mostly stiff, her large, uncut brown cock twitching stiff as she played with his ass. Before she met Douglas, she was afraid of being with a person. All those vulnerabilities and unknowns and fetishes all exposed to the daylight. She'd preferred to be like Douglas's pale white ass. Kept in the dark, kept secret.

But that was all out the window now. She was fucking pussy. She was getting fucked by Ryan's big white cock. And now she was going to get her jollies out on Douglas's tight white ass. She took a bottle of lube out of the drawer, gently dabbing some lotion onto his pucker, then her shaft, lubing them both up, then pushing a finger up into Douglas's ass, adding copious amounts of lubricant now.

"Mira," Douglas said softly, as Mira tugged his boxers down to his ankles, and off onto the floor. He grunted as she added a second finger.

"Shhh," Mira said. "I'll go slow. Just be my sweet boy and beg Mommy when it's time."

"What?" Douglas said, then grunting loudly as Mira started to push into his ass. "Fuckkkkkk."

"That's right, baby, we'll go slow," she said. And she did. For the next half hour, it was slowly fucking Douglas, from pain and discomfort, to it almost feeling ... good. And then, and only then, did she put him on all fours, her lean frame taut behind him, digging deep into his ass, pounding him out, but waiting for those magic words ...

"Mommy," Douglas rasped out. "Please ... let me cum." Silence from next door, the twin teens listening raptly to Mira owning their cousin.

"That's it, cum for me," Mira said sweetly, wrapping her hand around Douglas's small cock and tugging it firmly, making him shoot ropes of thick cum onto the floor. "You're my boy now, just for Mommy to fuck."