Return to Katherine's office.

Nurse Kelly cleared her throat before saying, "go ahead and put your clothes back on. I'll be back in Katherine's office after I run some tests," disposing her gloves and swiftly exiting the room with clipboard and tube. Annabelle, disappointed that the fun was over, quickly slipped on her panties, jeans, shirt, and boots, deciding to forego the coat for now, and bounded for Kat's office. As expected, her huge mounds bouncing with each step and her nipples protruding from her shirt without the coverage of her coat garnered several stares from various patients and staff. She blushed from her indecent exposure, but she had more pressing matters to worry about.

She entered Katherine's office again and saw her standing in front of her desk, facing away from the door preoccupied with something. "Haaay!" Annabelle greeted, returning the favor from earlier by enveloping her arms around Katherine causing her to jump in surprise, breasts squished against shoulder blades. Katherine quickly realized who it was from her voice and from her boobs before smiling and turning around to give a friendly kiss. Annabelle, still fired up, went for a kiss deeper and longer than Kat was expecting, causing her to moan from the sudden tongue invasion.

"Exam went that well?" Kat remarked.

"That nurse was so hot, she did this thing to me where she breathed hot air onto my snatch and started rubbing it to warm me up," Annabelle reminisced, feeling her face blush and her groin twinge with excitement, still wet from earlier. Her arms were nonchalantly draped around Katherine's neck.

"Really?" replied Katherine, bewildered. "I'm jealous, Kelly always seemed pretty cold to me. Maybe she just doesn't like me." Subconsciously, she started playing with both of Annabelle's boobs, kneading in circles with both palms.

"How long until she's back?" Annabelle asked, paying no attention to her breasts being fondled by her friend.

"Tests should take at least half an hour, why?"

Annabelle went in for another deep kiss. This time, Katherine was ready for it, tongues wrestling in her mouth. She could tell that halting in the middle of sexual acts over and over was beginning to take its toll on Annabelle. When they finally broke away, Katherine giggled at Annabelle's eagerness, before saying, "hold on," and pausing. Once again, they waited in silence, listening for any unsuspecting eavesdroppers. Annabelle fidgeted in anticipation.

Just for a moment, they heard some footsteps behind the door that were getting quieter as whomever was in the hall walked away, before silence. Katherine opened the door and poked her head out to check that the coast was clear, before giving the okay.

Without saying anything else, Annabelle desperately pulled her top off and tossed it to one side, letting her massive breasts bathe in the light for the third time today. She leaned back on the desk, both hands on the table, while staring at Kat with needy puppy-dog eyes. Seeing her friend in need, Kat pounced as she latched her mouth onto one of Annabelle's nipples and began gently kissing, kneading the other breast with her palm. Annabelle let out a soft tonal moan, finally getting the action she's been asking for as she placed a hand on Kat's head to encourage her to fellate harder.

Kat took the hint as she turned her delicate kiss into a tight suck, fitting the whole nipple into her mouth and flicking it with her tongue. She only pulled off the nipple with a loud smack to deliver a circle of kisses to the areola before reattaching herself with greater suction ****. She could feel the nipple throb to Annabelle's heartbeat, as well as every little wrinkle and bump on her lips and tongue. Playing with Annabelle's luscious pillows was the highlight of their destress sessions for her as she moaned in mutual pleasure through a blissful expression, breast muffling the sounds.

She knew that she had to stay silent, but upon feeling the vibrations from Kat's moan, Annabelle let out her own, sustained, a little too loud for someone trying to keep secret. Kat quickly but sharply pinched Annabelle's nipples to warn her where they were, causing Annabelle to yelp. Getting the message, Annabelle sheepishly whispered "sorry" before switching to a quieter deep breathing technique. Kat gently rubbed the nipple she pinched with her fingertips, as if to say, it's okay, just try to keep quiet from now on.

The only sounds in the room were the soft snacking of tit-flesh from Katherine, Annabelle's controlled gasps and the soft pitter-patters of rain outside. Both girls enjoyed each other in wordless pleasure as the action continued for a while.

Kat was the first to break the silence, once again popping off the nipple with a hard smack, watching a thin string of saliva drip down from her tongue before asking, "holy cow, what did Kelly do to you? Your buds are rock hard."

"She did this... thing with her fingers," Annabelle explained, using her free hand to mimic the action by Kelly earlier. With a twinkle in her eye, Kat immediately started emulating the motion on the breast she was kneading, jerking the nipple off like a penis, as if coaxing something out of it. Despite Annabelle's controlled breaths, she had to bite down on her knuckle to stop from moaning out loud, making a face of pained bliss.

"You know why nurses do this?" Kat asked while stroking the inch-long nipple like an erect cock. Annabelle, lost for words from the pleasure, could only shake her head no. "She's seeing if you can squirt out milk," Kat said, matter-of-factly.

At that, Annabelle could only close her eyes and try to pull Kat's head to her chest. Wide-eyed at the renewed vigor, she latched back on to keep the tonguing action going, continuing the jerking motion on the other, doubling down with increased intensity.

Annabelle could feel her brain exploding at this epiphany. She imagined Kat suckling milk from her teat, the other spraying out milk like a fountain. Even with her hand covering her mouth, a loud high-pitched moan escaped her as she felt a burning passion in her chest from Kat's words and actions.

Despite being worried about being heard earlier, Kat only continued to kiss and stroke with greater and greater intensity, eager to send Annabelle to new heights and fully realize what she awoke in her."Could I drink some more of your milk, please?" Kat teased, suckling Annabelle's teat as if something was coming out.

"My.... m-milk...."

After only a few more seconds, it happened. A massive wave of white-hot bliss submerged Annabelle from head to toe, every inch of her body screaming in pleasure. The only sound that came out of her mouth was a struggling gasping noise as she made a strained, almost pained face, both eyes shut tight. Through her leggings, she could feel her cunt making rippled contractions without any touch. Sheer pleasure seemed to emanate out from Kat's lips into her boobs, a mind-melting nipple-only orgasm.