Abbie takes the initiative

Abbie held her panties aside and wiggled her ass gently at Jake, but he wasn't moving. She didn't want to turn away from the action in front of her, but she wanted Jake inside her. She had hoped that pulling away her clothes and jerking him off for a bit was indicative enough, but she also knew that guys sometimes were unable to read the most obvious of signs from girls. She smirked a bit at the idea that Jake could be that foolish.

Abbie pushed her ass out a bit more behind her, and felt herself bump up against Jake. She realized that he was holding his dick, and probably jerking it himself, most likely while just watching her ass. (She was correct.) With a smile, she continued gyrating her hips, giving Jake a good show of her ass.

Jake, meanwhile, was enjoying the show a great deal. He wasn't sure which he wanted in the moment (or which Abbie wanted) -- to continue watching, or to take things a step further.

He didn't have much time to think, because Abbie reached a hand back, and once again took hold of his cock, pushing his own hand out of the way. She held him firmly, and pulled him toward her. It was a little awkward, the position, in that she couldn't really see him, but she pulled his dick toward her pussy, and nudged it against her.

.Jake took the signal clearly this time, and with Abbie's clear invitation, drove his cock into her hole. hey began to fuck, rather slowly at first. They were aiming to remain as quiet as possible. Abbie put her hands behind her and touched Jake's hips. Jake had one hand on Abbie's back, near her shoulder, and the other wrapped around her front, fondling her breasts through her clothes.

Abbie pushed her ass back against Jake as he thrust into her. She loved the feeling of his body against her as he fucked her from behind like this. And moving slowly and cautiously meant lingering at that point on each thrust, holding still as his cock was at its deepest point of penetration.

As for Jake, each time he reached that peak, he could feel the tip of his dick along the inside of Abbie's vagina, feel the pressure, the friction, the warmth. He pulled her body back against him, and then relaxed his grip on her and withdrew. Then another thrust, and another.

The entire time, Jake was plenty excited simply to be having sex with Abbie -- but he knew that something else was going on around the corner of that shelf, something he couldn't see. He was so curious, but for the moment, had to let him imagination run wild. He hoped that Abbie would facilitate a shift in their position so he could get a view of whatever she was watching.