A surprise visit.

Kat didn't notice at first faced away from the door, but Annabelle froze in shock, inadvertently edging her friend. Kat, not realizing what was going on, started grinding her hips on Annabelle's face, begging her to continue. Annabelle tried to say something but was muffled with a face full of pussy, and instead began frantically tapping on Kat's back. Kat let out a whine of disappointment, turning to look over her shoulder, revealing her pouting, red face coated in saliva to the intruder. That whine transitioned into a look of fear as she noticed who was standing there.

"Uhm, I finished those tests you wanted," nurse Kelly informed as she stood holding a manila envelope, looking down disapprovingly at the naked, sweaty pile before her. They all paused, staring at each other awkwardly for a moment. Juices continued to flow down onto Annabelle's face.

"Please, don't let me interrupt your fun," Kelly reprieved, simply walking past the two to place the envelope on the desk. Still in agony from being edged, Kat threw out all sense of professionalism and let her animalistic senses take over, shouting "Please!!" while grinding her hips into Annabelle's face. Despite the fact Kelly saw her complete package just over half an hour ago, Annabelle still felt in shock. Still, she obliged and continued to suck on Kat's clit, waiting for the nurse to leave.

Katherine heard the door close and resumed her own tongue action on Annabelle's slit. But what she didn't know was that Kelly was still standing in front of the door, watching the two orally please each other. Slowly regaining her composure, Annabelle decided to give their voyeur a show as she sucked at full strength again, drawing more moans out from Katherine. Even the stoic nurse Kelly couldn't help but get turned on as Annabelle watched her face flush red. For her, or for anybody, Kat's perfect butt was difficult to just walk past.

The show went on for a while until suddenly, an idea went off in Annabelle's head. She pointed to Katherine's anus while looking invitingly at their accomplice. Kelly aggressively shook her head no, putting on a bashful expression and turning a deeper shade of red. Kat was unaware of the silent conversation taking place behind her, just focusing on reaching orgasm. Using her hands, Annabelle spread Kat's cheeks to reveal her tight anus. Again, Kelly shook her head no, but began to stir.

Annabelle shrugged as she quit offering and switched back to just delivering a show, massaging Kat's clit with her tongue. But suddenly, Kat's anus begun contracting as she neared her orgasm. Kelly watched on, breaths getting faster as the perfect anus tempted her, hypnotizing her, realizing that this is her one chance to get to know her colleague better. She stood there, blushing, weighing the consequences while watching the hole wink at her, moans from Kat growing louder. Slowly, her window of opportunity closed as she considered. Finally, she came to her decision.

Katherine reared her head as she tried to figure out what was going on. She looked over her shoulder, shocked to see the older Kelly tasting her anus with her tongue! No longer able to hold back, she let out a loud cry as she received kisses from both ends at the same time, slamming her eyes shut while checking to make sure this was reality.

Annabelle continued to suck joyfully, happy to repay her friend for her earlier orgasm. She listened on to the naughty sounds of slick lapping as Kelly quickly flicked her tongue across Katherine's star. Annabelle could sense that Kat's orgasm was quickly approaching with greater intensity than before, feeling her legs squeezing around her head and seeing her pussy start to contract violently.

Annabelle and Kelly's attack continued just a few more seconds before finally, Kat gave in, arching her back to its maximum, legs giving, and letting out a loud howl off a powerful orgasm. The fluid that oozed out up until now was merely a warning sign as the floodgates opened. Juices erupted out of Kat's vagina, completely coating Annabelle's face, getting into her eyes and nose. Annabelle made the poorly (or excellently?) timed decision to pull off of Kat's clit to breathe, only as another wave of hot nectar poured out straight into her open mouth, causing her to ****. She could only gurgle in ecstasy.

Kelly gave one last lick before pulling away from Kat's derriere, blushing at the mess painting her patient's face that came out of Kat's vagina, the mess that she caused. "Still think I'm cold?" she asked, rhetorically and confidently. Kat just laid there, face down, completely motionless apart from her heavy breathing.