Moments later Kelly was rapidly approaching another exquisite climax. She lost control and with a satisfied moan she pushed herself backward wanting more skewering on his cock. Her eyes glazed over with lust as the sensations of being so full flowed through her body. Up to now, Kelly had no idea that she could even react this way during sex. But now she did know, and she was very happy that she could reach such intensity. Jason grunted too. His cock was as hard as hard could be, pressing into his mom's cervix. He stopped movement and savored the moment. The feeling was exquisite, his mom so wet and hot, but was still tight so he could feel the walls of his mom's pussy caressing his cock while she orgasmed! His face had a look of extreme pleasure upon it as he looked at Dr. Wood for a moment, and then back toward his mom's buttocks, obviously pleased with himself so far.
It was a couple of minutes before Kelly finally calmed down and Jason gripped the globes of her ass as tightly as he could, digging his fingers into her pale flesh. He started to slowly penetrate the big-titted hot mom from behind again, and Dr. Wood smiled with pleasure as she observed Kelly's reactions. Kelly abandoned any hope of remaining stoic and proper. She obviously could not resist her son's young huge cock, so Dr. Wood used the opportunity to encourage him to go further with his hot mom, "Jason, you can gently caress and squeeze your mom's huge tits from behind. And you can pull quite hard on her nipples. Your mom needs that stimulation! It will help her reach orgasm easier, more frequently and with more intensity, making more pussy juices for your cock head!"
Jason accepted immediately Dr. Wood's proposal without waiting for his mom's approval and before she could respond or react. He moved both hands up from his mom's round buttocks and leaned over her. He studied her body as his hands roamed freely over, in and around it for the first time, bringing 'mmms...' and 'aaahs...' from her. Then he moved his hands along his mom's sides and beneath her chest. Soon he was fondling a huge breast in each of his hands and his long fingers manipulating her hard nipples. He mauled them, alternating between squeezing her whole tits, letting their excess volume mash between his fingers, and pinching and pulling on her nipples, making his mom moan even louder.
"Oh, am I wrong about any of that? Did I want him to touch me like that? Is his touch exciting me?" Kelly asked herself and immediately she tried to justify herself. "I had no time to react. I feared for his health." Very soon Kelly forgot about all these questions and surrendered to lust again. This time it seemed like she was capitulating willingly and with a great deal of enthusiasm. Swallowing deeply, she ran her tongue around her lips; there was no denying that her son was good! The lust-maddened hot mom started to moan incoherently, her sharp high moans were replaced by low sounds of an animal in heat.
Jason loved those low, wrenching, climactic sounds his mom made. He was thinking how great it was to penetrate such a beautiful woman like his mom was! His left hand once again found her full round nipple and rolled it between his fingers, pinching lightly as he pulled on it.
"Uh... uh... I love it," Kelly admitted out loud. Obviously, she enjoyed it! And obviously she felt hungry for more of his touch.
At the same time, Dr. Wood noticed that it wasn't therapy more. It was real lovemaking. Kelly's enthusiasm was intoxicating, she was really getting into it. Her loud moan of approval 'oooh' and 'oh yahs' while Jason fucked her pussy was confirming it. Then Jason began to increase the rhythm. Kelly was wet as never before and she could hear the slurping, popping, snapping and more sounds coming from herself for the first time. She didn't know earlier that her pussy could make all those sounds. She lifted her head and sighed with satisfaction as she indulged in a new massive orgasm.
"Oh... ah... oh that's it! I'm coming! I'm coming again! Yesss... yesss...Don't stop, please! Don't stop!" Kelly blurted. She threw her head back, violently trembling as Jason felt her pussy begin to clinch down on his probing cock.
Dr. Wood waited while Kelly calmed down, but her breathing had turned into constant moans and grunts. She turned her head side to side and moved her arms up to the sides of her head grabbing into the carpet. Finally, Kelly opened her eyes and at that point Dr. Wood noticed with excitement, "Oh Jason, this is amazing! You are doing a great job. But, as I said earlier, I'm pleasantly surprised that your mom has so much untapped sexual potential. Obviously, with your help your mom can greatly expand her orgasmic acumen to greater heights! Your mommy loves it!"
Kelly blushed, but moaned in pleasure, rolling her eyes back into her head. Dr. Wood stated it as the simple truth and Kelly had to admit herself that Dr. Wood was right.
Jason was so proud, and he continued to fuck his hot mom with new enthusiasm. Again, his huge cock was slowly going in and out of her puffed lips. Kelly moaned and shuddered with satisfaction and Jason started to fuck her harder and faster. As Jason was fucking his mom from behind, Dr. Wood was focused on Kelly's hot body. Her tits were flopping side to side, up and down, bouncing all around. She was gritting her teeth, her hand gripping the carpet, her facial expression grimacing while tossing her head up and down, side to side. With every stroke, Jason pulled out until only his cock head was in her pussy slit, then fucked all the way back into her vaginal canal. She was feeling and enjoying every square inch of his massive long cock going in, out and back in again.
"Ohh, it is like he is putting his entire arm inside of me!" Kelly moaned as Jason was stretching her pussy beyond belief.
"Yes, mommy, your son is a really big boy! His huge cock can touch a sensitive place deeper inside you than anyone's ever been to. I'm sure that the stretching and fullness of taking such a long thick cock is fantastic!" Dr. Wood agreed with her.
"Ah... yes... it's amazing!" Kelly replied. Then she moaned loudly as Jason accidentally angled his hips upward and Kelly for the first time felt his head brush past her cervix and lodge itself into a deep pocket of her vagina. Frightened, Jason angled his hips down, however Kelly dropped to her elbows and her lower back arched down deeply, making her hips tilt upwards. She moaned even louder as she changed angle of penetration again. Dr. Wood realized what Jason did accidentally, so she ordered to him "Jason, keep this direction of penetration, your mom loves it!"
Then Dr. Wood lowered and whispered into Kelly's ear, "I can bet he banged into your deepest spot! Not a lot of guys can reach that place."
"Mmm... ahhh... yesssss...," Kelly grunted, agreeing with Dr. Wood's statement, so Dr. Wood continued Jason's education in a slightly shaky voice. "Jason, you were actually pushing past your mom's cervix into the deepest part of her womanhood called the 'posterior fornix'. This structure, along with the 'anterior fornix' are the pouches of the vaginal canal and are adjacent to the cervix."
Jason nodded but it was obvious that he didn't comprehend what Dr. Wood was saying.
"As you know, inside the body of women, in a fully aroused state, the vagina is expanded and lengthened. Also, the uterus is pulled upward into the body, changing the position of the cervix. Also, space opens up away from the cervix, leaving room for penetration and friction. However, a small or average penis fails to reach the cervix and the anterior and posterior fornix areas of the vagina, leaving vital pleasure zones unstimulated," Dr. Wood explained further and paused a bit again.
"Yes, I can feel that!" Jason groaned as his whole body arched in need.
"I believe you, Jason. You are huge and your long cock can reach deep inside your mom's pussy easily," Dr. Wood confirmed.
"And I can feel the head of my cock received the intense stimulation!" Jason added.
"Yes, the walls of your mom's posterior fornix have a softer spongy, stretchy feeling that is different to the rest of your mom's vagina. That's why it's a pleasure spot for you. However, it's also a pleasure spot for your mom. She loves doggy position and deep penetration because she receives pleasure and enjoyment from stimulation of the posterior fornix. You noticed several minutes earlier, your mom lowered her shoulders a bit to put your huge cock at a more stimulating angle. Better to say, your mom adjusted the angle for the best and deepest penetration!" Dr. Wood said with a look of satisfaction on her face. She continued, "The orgasms that result from stimulation of the fornices are thought to be distinct from the orgasms that result from stimulation of the clitoris, but some women who have experienced them say that they are similar in sensation to orgasms achieved by G-spot stimulation, while others say that they are more intense. The anterior fornix isn't as deep as the posterior fornix, and isn't as intensely stimulating to the penis. The posterior fornix is known as an intense pleasure zone in many women. It's around an inch deeper than the anterior fornix and, when penetrated, it can give a woman the feeling of extremely deep penetration, and in some women like your mom is, it is more sensitive than the clitoris or G-spot. During sexual intercourse in the missionary position, the tip of the penis reaches the anterior fornix, while in the rear-entry position it reaches the posterior fornix!"
