Lower sexual stamina

Cynthia finds the sexual stamina slider and lowers it to about a third of what it was. Might as well raise his arousal while I'm at it, she thinks to herself as she adjusts the arousal slider before slipping her phone into her pocket and heading out into the kitchen.

"You look incredible," Mark practically gasps as Cynthia walks back into the kitchen. She smiles and begins serving herself a plate of the pasta, which is finished. As she ladles spaghetti into her bowl, she feels the hard bulge of Mark's erection pressing against her as he embraces her from behind, burying his face in her hair and inhaling as his hands explore her hips and make their way to her breasts.
"What's got you so excited?" she asks, doing an incredible impression of someone who's pleasantly surprised.
"I don't know," he says, "I'm just really horny tonight. Shit, put down the spaghetti and let's fuck." Cynthia lets out a laugh and looks at him incredulously over her shoulder.
"Dinner will go cold," she says teasingly. Mark groans in frustration as he grinds his bulge against her pajama-clad ass and kisses her neck. Smiling, she puts down her bowl and undoes her robe. It's not particularly necessary, because the moment Mark sees that she's game, he's lifting up the back of the robe and pulling down her pajama pants.

Cynthia leans over as much as she can without disturbing the spaghetti in order to give him easy access to her pussy. In spite of her ongoing rage and disgust for Mark, her pussy is wet from the thrill of ****. Mark moans as the length of his cock slides into her. He thrusts into her once. Twice. Three- oh! On the third thrust, his cock starts throbbing she feels a hot jet of cum erupt inside of her. Mark gasps in surprise and pulls out, grabbing his cock as though trying to stop his premature ejaculation midway through.
"What the-" Cynthia starts, feigning surprise as she looks back at him. His face is a combination of shock, embarrassment and pleasure as his cock dribbles out the last of its load.
"I'm sorry," he gasps. You SHOULD be sorry, asshole, Cynthia thinks to herself, you fucked my best friend.
"Oh, honey, it's okay!" she assures him in a voice which carries just enough disappointment that he shouldn't be able to miss it. She feels his load running down her legs and looks down at the pajama pants around her ankles, now sprayed with with semen.
"Well," she says jokingly, "I guess I shouldn't have worried about dinner going cold!"