The woman's breasts – or titties, as Stacy knew Betty would call the big twin mounds – were poking straight out even without the bra. Soon she saw the man's cock, and it was also poking straight out.

In a matter of seconds the man and woman were both completely naked. Stacy failed to suppress a little gasp as the woman dropped before the man and grabbed his thrusting cock with both hands. Then the woman's tongue darted out and licked all around the big knob.

"She'll suck his disk," Betty whispered. "Then he'll probably lap her pussy before they fuck. She won't blow him off all the way, of course. That'd mean that she'd have to wait for him to get another hard-on before they fucked. Look at that!"

Stacy was looking. She fleetingly thought that she'd put up one hell of a fight if somebody tried to pull her away from the window. The woman had gone down lower and was licking the man's heavy hanging testicles. The man tapped the woman's head lightly and she pulled her face back, her parted lips glistening wetly in the light.

The couple climbed onto the bed and Betty whispered that they were getting where they'd be more comfortable. Stacy had figured that out by herself. She was already getting sexy-hot from what she'd already seen and she hoped that she didn't cream her panties. That'd be embarrassing! Especially if she was unable to keep Betty from knowing it.

The man got on his back. The woman got on her hands and knees and suspended her face over his jutting cock. She licked the big knob again, then balanced on one hand and arm while she used her other hand to hold the hard flesh steady by grasping the thick base of the shaft.

She opened her mouth wide and engulfed the swollen glans. Stacy could see her cheeks bulging out. But she only kept the knob in her mouth for a few seconds. Stacy glanced at the man's face and saw his lips moving. She assumed correctly that the woman had been told, or asked, to stop sucking.