I had convinced my dad to come to a doctor's appointment with me. He had no idea what I had in store for him. Neither did my favorite practitioner, Dr Phoebe Winterholt. After a while in the waiting room, she called my name and my dad and I got up and walked into her room.

"Hi Ashley." she said nervously. I think she was uncertain about someone else being in the room with us.

"Hi, Doctor Winterholt." I said smiling. "Oh don't worry, this is my dad. I brought him with me so he could fuck us." I said nonchalantly.

"What?" Phoebe and John asked in unison.

"It's fine. I've had some amazing sex with Jen and Phoebe before and I thought I'd like you two to experience each other." I advised.

"Ashley, that's your dad. I don't mean to pass judgement but I can't take part in that." she told us. My dad stood very awkwardly with his back against the door.

"Wait until you see how big his dick is." I said as I got on my knees in front of John. I unzipped his pants and pulled his flaccid penis out.

"Ashley, no." he said half-heartedly. "Your mother would kill me if she found out."

"No she wouldn't. She'd be jealous she wasn't here to share the experience." I countered before putting his dick in my mouth and started sucking it. Phoebe looked on in shock while my dad closed his eyes and enjoyed me blowing him. I felt him getting hard in my mouth and very quickly he was fully erect. I then moved my head out of the way so Phoebe could see the size of John 's member.

"Jesus Christ, that's an enormous dick." she said involuntarily.

"I know. Wait until he fucks you with it." I quipped as I stroked my dad's length to keep him nice and hard.

"Ashley, I can't do that. You know I'm engaged. And it's your father. I can't be involved in this." she said argumentatively.

"Do we really have to play this game again?" I asked. "We both know it's just going to end with your pussy filled while your tits bounce up and down as you cum all over the place."

"No!" she yelled angrily.

"Fine. Then you can just watch." I said as I got up and took my dress off leaving just my navy-blue satin bra and panties on. I slid my panties down my legs and bent over in front of John so Phoebe could look at my ample cleavage hanging beneath me. "Stick it in me." I said as I looked my hot doctor in the eyes. She looked back at me in total disbelief. Dad paused a moment but the thought of penetrating his daughter's tight, wet pussy won him over very quickly. I felt my father stick his erect penis into my slick vagina. I moaned as he pushed his length into me and filled me up. "Oh my god. It doesn't matter how many times I have his dick in me, it always feels huge." I told Phoebe.

My dad started thrusting in and out of me making my tits jump. My bra couldn't contain them and soon my nipples burst out. I could see Doctor Winterholt watching them as they jiggled with every jolt. "Tell me your pussy didn't get a little bit wet when you saw my name on your list." I teased.

"Yeah. Ok. Maybe a little." she admitted.

"Then come here and play with my tits while my dad fucks my pussy." I told her playfully. "You know you want to."

"Arghh. Fine. I can't believe I'm doing this again." she said defeatedly. Phoebe walked over to me and started groping my tits. "I'm Pheobe by the way. Ashley's doctor." she said awkwardly to my dad introducing herself.

"Lovely to meet you. I'm John. Her father." my dad said just as awkwardly as he continued inserting himself into my pussy.

"Now that the introductions are over, why don't we all get a little more comfortable?" I suggested. "My dad loves big tits. Which means he's going to love yours. Why don't you take your top off and let him enjoy those huge things your hiding in that top?"

"Ok." Phoebe said shyly as she undid her blouse. She opened it up to reveal her huge cleavage being supported by a lacy black bra. Then she reached behind her to undo the clasp and let her tits out in all their glory. I'd forgotten how epic they were.

"Jesus Christ those are impressive." my dad blurted out. Phoebe blushed.

I stood up and let my dad's erection slip out of me. "Why don't you suck my pussy off his dick?" I suggested.

Phoebe got on her knees willingly and looked at my dad's enormous, lubricated cock. "Do you mind?" she asked politely.

"Not at all." John answered. Then Phoebe put his penis in her mouth and began sucking it attentively. She moaned as she tasted the inside of my pussy all over it. "That feels so good." my dad said breathing deeply. I watched on as my doctor sucked off my father in front of me. I couldn't quite tell who was enjoying it more though.

I let them continue a while before I decided to move things on. "Both of you get naked. I want to watch you fuck." I told them. They obeyed and I relished watching doctor Winterholt undress. She was a skinny little thing with a nice ass but her tits were so much bigger than her frame should have allowed.

"How do you want us?" John asked.

"Lay on the examination table with your legs in the air, Phoebe, so you can look at each other while he fucks you." I ordered. Phoebe obliged. She spread her legs and let my dad between them. We both looked at her tight, pretty pussy that was just begging to be fucked. "Let me just taste her before you fuck her." I said. I leaned forward and started eating my doctor's beautiful pussy. She moaned as I tasted her delicious wetness with my tongue. Then I sucked my dad's dick to make sure he was well lubricated. "Are you ready?" I checked with Phoebe.

"Yes." she replied.

"Just breath out as her enters you." I advised.

I watched up close as John pushed his head into her lips. Phoebe's mouth opened wide as she felt my father's girth stretch her vagina. "Holy shit." she muttered. "Deeper!" she begged. My dad pushed his cock slowly into Phoebe who recoiled slightly as she experienced every inch of that big erection. "Oh my god, that's good." she moaned. I smiled at her as my dad pulled back and then inserted himself slowly once again.

"Is that not the biggest dick you've ever fucked?" I asked.

"Yes." she cried as John began fucking her with a gentle rhythm. Phoebe and John went at it for a while. My dad watched her tits rock back and forth on her body as he split her tight pussy. "Kiss me." she demanded as she pulled my face into hers. Our tongues danced around each other passionately while I groped her tits and pinched her hard, red nipples.

"I want you to cum for me." I told her as I reached my hand to her clit and started massaging it. Her face clenched as she moaned loudly with pleasure. Within a few moments, she was cumming. I pushed my dad back so I could watch Phoebe's pussy ejaculate her customary continuous little squirts all over his dick while she climaxed. I moved my face between her thighs and drank the last of her cum straight out of her pussy. Then I sucked my dad's dick and tasted her cum and pussy all over it. Phoebe lay on the examination table for a moment and breathed heavily. "Was that good?" I asked.

"Unbelievable." she replied.

"Now get up. It's my turn." I commanded. I swapped places with Phoebe and lay on the table where she had just been fucked sideways. "I want you to watch closely as my father sticks his big, erect penis into my pussy. Focus on the fact that you're watching incest as he fucks me. It'll make your next orgasm even bigger." I told her. She nodded in acceptance. Then my dad penetrated me with my doctor's face a few inches away from our genitals. I moaned as he fucked me. "Do you like watching a daughter having sex with her father?" I asked.

"Mmm." Phoebe muttered. "It's so... raw and intense." she admitted.

"Isn't it?" I agreed. "Now suck his little girl's pussy off his dick." I ordered. My dad pulled out of me and let his dick stick up for Phoebe to suck. She gently put her lips around his girth and slid her mouth down his shaft, making sure to clean my pussy off it. "That's the taste of incest, doctor." I said. She smiled at me with his dick in her mouth. Then she released him and my father resumed fucking me but with more aggression this time. My tits jolted every time he rammed into me and I moaned to the rhythm of it. Phoebe started sucking my nipple and rubbing my clit. I moaned loudly and felt the dopamine flood my brain. I choked out a primitive sound as I climaxed while I pushed my dad back. My pussy then erupted all over him. Now Phoebe dove her face between by thighs and I doused her in cum. She swallowed as much as she could like a ravenous whore. I ejaculated again as my father joined the doctor between my legs and they shared my vaginal excretions.

I panted heavily as I looked down to see Phoebe and my father making out with my cum dripping off their faces. "Let me taste myself, you filthy cunts." I implored. They both got up to kiss me. I savored the sweetness of my cum on their tongues as they took turns plunging into my mouth. "Spit in me." I ordered Phoebe who willingly obeyed. She spat her saliva into my mouth and I let it run down my tongue, enjoying the lingering taste of my own cum in there.

"Jesus Christ, dad. Your cock is something special. I can't wait for you to squeeze that into Phoebe's tight little asshole." I said. Phoebe looked at his huge dick and her eyes bulged.

"I don't think you can fit that in my ass." she said tentatively.

"Trust me, we'll get it in. And you'll cum again like the dirty, huge-titted slut you are." I assured her. "Do you want to fuck her in the ass, John?" I asked.

"I'd love to if she's ok with it." he answered thoughtfully.

"I mean we can try." Phoebe replied somewhat excitedly. "I'd be impressed if I can fit that thing in my ass."

"Good. Bend over the examination table so he can take you from behind." I commanded. She dutifully bent over and her tits compressed on the table-top as she gave her ass up for my dad. He positioned himself behind her and moved his cock to her ass.

"One second." I interrupted. "You're going to need some form of lubrication." I smiled. I climbed up on the table and stood over my doctor and faced my father. I pushed my hips forward and started pissing all over her ass and his dick. John started jerking himself off in my warm stream while Phoebe just turned around and watched me relieving myself on her. "Do you want some?" I asked her.

"Yes, please." she begged. So I turned around and pissed all over her face while she swallowed my urine eagerly. I emptied myself into her mouth before jumping down from the table. I spread her ass-cheeks and began eating out her piss-covered asshole like the filthy whore I am. Phoebe moaned with pleasure as my tongue forced its way through rim. The taste of her rectum combined with my piss was priceless. Then I withdrew my tongue and spat on her anus.

"There, now you can fuck her tight little ass, dad." I declared. He immediately moved his piss-covered dick to her rim and gently put more and more pressure into her. Phoebe's face contorted slightly as she felt the stretch.

"Are you ok?" John asked concerned.

"Yeah. It's just so much dick." she replied. "Keep going. I want you to fill my rectum." I was so turned on and impressed by her willingness to have anal sex with a complete stranger. My dad managed to force his head through her anus and then slowly inched his shaft into her. Again, Phoebe's jaw dropped as she was anally penetrated by my dad's enormous cock. I watched up close as his length disappeared into her tiny ass. She moaned loudly between pain and pleasure as he pulled back and then moved all the way into her. I started making out with my father while he fucked Phoebe in the ass. "A little bit harder." she asked suddenly. John began gliding back and forth with more purpose as they both enjoyed the sensation.

"Let me taste her insides." I requested. My dad pulled his dick out from her rectum and shoved it straight in my mouth. Phoebe's ass was all over his cock for me to suck clean. "Fuck you're tasty, doctor." I said.

"Put it back in me already." she said desperately. John obliged and popped back into her ass. "Yes!" she exclaimed. "Give it to me, John! Fuck my ass!" she pleaded. My dad started pounding her, making her whole-body jolt forward on the table. She was taking every inch of his erection in her rectum as he filled her up completely. I stood to the side and just watched the two of them fuck as I masturbated my wet pussy.

They continued like that for a while before Phoebe jumped in, "Sit on the chair over there. I want to bounce up and down on that big dick while I cum." John pulled out of her and sat on the chair as directed. Phoebe then rolled off the table and backed her ass onto his pulsating erection. She lowered herself and I saw my father's cock disappear into her rectum with ease. She bounced up and down and her tits bounced in the same rhythm. "Yes!" she cried.

"Do you like sharing my father's dick with me?" I asked her.

"Ahuh." she panted.

"I want you to remember watching my father's penis sliding in and out of my perfect, pink pussy. Remember that you sucked his dick clean of his daughter's moisture." I reminded her. "Remember how fucking hot it was watching the incest between me and him as fucked me like a slut." She listened to me intently and reached her precipice. John grabbed her tits from behind and squeezed them firmly. Then Phoebe's pussy started squirting all over her floor as she let out a deep moan. She continued moving up and down with his dick still in her ass while her pussy spat out more cum everywhere. Finally, she collapsed to the floor and lay in her own ejaculate breathing deeply.

"Well that was fucking hot." I declared as I stepped over Phoebe on the floor. I straddled my father and shoved my tits in his face. "I think you should fuck my ass with that big dick now." I told him as I grabbed the base of his shaft behind me and moved it to my asshole. Then I lowered my weight and let my father penetrate my ass with his erect penis. He slid into me easily with the moisture from Phoebe's rectum still covering him. I started rolling my hips around while he sucked my tits. "Are you watching my dad fuck me in the ass now, doctor?"

"Yes." she forced out. I began bouncing up and down my father's erection as I felt him nudge the back of my rectum with his tip. It felt so fucking good and I wanted to cum. But I knew my orgasm would always be more intense if let my dad cum in my pussy. "Do you want to watch my father blow his load in my vagina, doctor?"

"Seriously?" Phoebe asked. "Isn't that a little risky?"

"Why? Are you worried he's going to get me pregnant?" I quipped.

"Yes." she replied.

"Mmm, that's what makes the taboo even better." I said. I got up from my dad's lap and lay on my back on the examination table with my legs spread. "Now finish inside me with your ass-covered cock." I ordered. John got up and moved towards me. "Come and watch him fill my pussy with his sperm, Phoebe. You'll love it." I assured her. She didn't argue. She got up and followed my dad between my legs. Phoebe watched from up close as my father stuck his erection into my dripping wet pussy. Then he fucked me hard like a dirty bitch.

I felt John ramming his big cock into me and I jolted with every insertion. I reached down with one hand and rubbed my clit while I held one of my tits and pinched its nipple with the other. "Spit on my face, doctor." I urged. Phoebe jumped up and spat all over me. "Again." I felt another load of her saliva cover my face. "Again!" This time I rubbed her spit all over me and into my mouth. It sent me over the edge and I came so fucking hard. My pussy quivered and ejaculated around my father's erection. "Cum inside my pussy, dad!" I yelled. John pumped me a few more times before he sighed deeply and blew his huge load of cum in me. He continued fucking me as we both rode our orgasms. Phoebe moved her head between my legs and watched my dad's dick contracting as he emptied his sperm into me.

"Fucking hell, Ashley." Phoebe said. "You're crazy... but I can't get enough of it."

"Thanks." I managed to mutter as I breathed deeply with my dad's cock still pulsating inside me. "I want you to eat his cum out of my pussy now." I told her. "But make sure you suck his dick clean first." I added. My dad slowly pulled his length out of me and presented his now semi-erect, cum-covered penis to Phoebe. She got on her knees and took him in her mouth. I could see his cum sticking to her lips as she blew him. John held on as long as he could but it was too sensitive for him so he pulled back and collapsed on the chair. Then Phoebe got between my thighs and started eating my pussy wildly.

"Your combined cum is amazing." she said before jamming her tongue into my cum-dripping cunt. She licked me out for a few moments before she started licking my clit. "Cum again for me." she directed softly. "I want you to spray all that cum inside you into my mouth." I wasn't going to argue. I let her eat my pussy and she quickly brought me back up to another climax. She jammed a thumb into my ass and finger-fucked me with it. I came very quickly and ejaculated all over her face. I could see my father's white cum sliding down her nose and into her mouth. She swallowed everything she could and smiled contently. "Mmm. Delicious." she stated.

"Fuck that was good." I said. "You're welcome by the way, Phoebe."

"For what?" she asked.

"For letting me share my dad's cock with you." I replied.

"Oh yeah. I have to admit that was very fucking good. You can come back and fuck me any time you want. Both of you." she said. "Now get dressed and get out of here. I need to clean up before my next patient." I got up and put my clothes on, still covered in all sorts of bodily fluids. My dad and Phoebe did the same. I hated watching her put her magnificent tits away into that bra but I'd had my fun. John and I walked out of her office with huge smiles on our faces without anyone being the wiser.

And that was the first time Phoebe fucked John.