Sammy can feel the Boss Lady getting more and more excited, swelling up harder in her throat. She can tell that she's near the finish, and she doesn't know if she's ready to take the load just yet. Time to switch it up for a minute, she thinks. Sammy pulls back and starts to curiously tongue around the tip and into the hole. I can fit my whole tongue in there.
As she slides her tongue into the hole, the boss sighs with pleasure. Her tip is as big as my face, she thinks, as she presses her face against it. That was a mistake. Boss Lady trusts into her face, and Sammy's head is now inside. This can't be real. She feels her shoulders go in with the next thrust. There's no way I can go in any farther, right? The next trust takes her to her knees. Sammy feels the shaft wrapped tightly around her, sliding against her body. Oh yes, take all of me!
She's taken in completely with the final thrust. Make me your load. She sighs with relief as she slides through the tightness into what she can only guess to be Boss Lady's warm sack. She relaxes for a minute, but she can feel the sack pulse and tighten around her. The boss is still edging on climax. What now?