She wants a pet

"We let him be our little pet," Amy pressed her palm to Hal's cock, fondling his balls.

"I'm not following," Hal was never the brightest.

"We let him join us, play with us, but he can only do whatever we command."

"I don't want him to join us, honey, our sex is great."

"Think of the benefits, baby. He won't do anything with me, he'll just... prepare us. Lick me out -- you never liked doing that anyway. Plus, then, we can fuck wherever and whenever we want to."

"I still don't like the idea of him touching you."

"It's the ultimate domination, honey," Amy had Hal's cock at attention now, "You can do whatever you want to John. He won't just be my pet, he'll be yours too. In and out of the apartment."

"Ohhh yeah I really like that," This set something off in your roommate. He bucked his hips into Amy's hand.

"Plus we won't even need to buy lube anymore. John will be our "natural" lubricant," She stroked him slower now, feeling the veins along his thick cock, "We should start tonight."

"How do we wanna wake him?"