NOTE: This story involves elements of cheating, submission, cuckolding, and even homosexual moments. If you don't enjoy these things, you should not read any further.
"Please, have a seat and get comfortable." Serena told her new clients.
Ben, 28, entered the office with his wife Summer, 24. Ben was wearing jeans and a shirt while Summer had on purple leggings and a white crop top, showing off her feminine curves and 34D breasts.
Serena crossed her legs, notebook and pen ready, and smiled at them.
"I'd like to welcome you both." Serena said. "As a therapist, my specialty is in relationships, specifically areas that pertain to sex. I know we had a brief discussion when you made the appointment, but why don't you tell me a bit about yourselves and why you're here today?"
Ben and Summer looked at each other and took a deep breath. They then turned back to Serena.
"I'm Ben and this is my wife Summer."
Serena smiled and made a quick note.
"We've been married just over two years." Ben continued. "We love each other and I truly believe we're soulmates, but there was an... incident... that happened a few days ago that we'd like some help navigating."
Serena continued making notes. "Please continue."
Ben looked at his wife again before continuing.
"Well, I came home from work early." Ben explained. "I heard moaning coming from the bedroom and I assumed Summer was just playing with herself."
"Do you masturbate often, Summer?" Serena interjected.
Summer nodded her head. "Yes."
"Fantastic!" Serena said, turning back to Ben. "So you heard moaning..."
"Right." Ben confirmed. "I approached the bedroom and saw her discarded panties in the hallway. I was expecting to see her enjoying her fingers or one of her many toys. Instead... I noticed she wasn't alone. As I peeked into the room, I saw her on top of another man. Her back was to me and I saw a very thick and impressive penis thrusting into her incredible ass."
"Oh my!" Serena exclaimed as she made a note. "Summer... is your husband's story accurate?"
Summer nodded again. "Yes, he's correct."
"Interesting. Thank you for being honest." Serena added before turning back to Ben. "And how did that make you feel? Seeing your wife engaged in anal sex with another man?"
"That's the weird part. It was shocking and surreal... but I didn't feel angry at all. Watching that big cock slide up her ass turned me on." Ben admitted. "Before I could fully process what I was witnessing, I was rock hard."
Serena smirked. "I see. And did you confront your wife and her lover?"
"No, I didn't. I could tell how much she was enjoying herself and I didn't want to take that pleasure away from her."
"So you continued watching them have sex together?"
"Only for a few more seconds. Like I said, I was rock hard and I knew I needed to jerk off." Ben explained. "I grabbed Summer's discarded panties and snuck into the closet of the guest bedroom. Her underwear was really damp, which means she was really horny for whoever was fucking her. I took my penis out and started to jerk off while sniffing her dirty panties."
"And did you achieve orgasm?" Serena asked.
"Oh yeah." Ben answered. "It didn't take long at all. I couldn't stop thinking about that huge, veiny shaft pumping balls deep into her tight ass. After a few pumps, I knew I was close, so I wrapped her soaking wet panties around the head of my cock and unloaded. It felt like the biggest cumshot I've ever experienced."
Serena nodded her as she made more notes.
"This is fascinating." She told the married couple. "And what did you do after ejaculating into your wife's underwear?"
"I stayed in the closet and waited for them to finish."
"That was very considerate of you." Serena said with a smile. "And at what point did you feel comfortable coming out of the closet?"
Ben cleared his throat, caught off guard by her choice of words.
"I heard them walking down the hall and then a few minutes later I heard Summer turn on the shower." Ben answered. "That's when I zipped up my pants and finally came out of the closet."
"Perfect." Serena added, making another note. "It seems we have quite a bit to unpack here. But I'd still like to hear more from you, Ben. Once you came out, did you finally confront Summer?"
"I sat on the edge of the bed with her panties next to me while she finished showering." Ben continued. "When Summer came back into the bedroom, she saw me. And then she saw her underwear and I guess she realized I knew about her riding that big dick."
"And how did your wife react at that point?"
"She started to apologize and tell me she loved me but I put my hand up to stop her. I told her I wasn't mad. I still don't know what I was feeling, but it wasn't anger."
"I see." Serena said as she made another note. "Was it jealousy? Humiliation?"
"Maybe a little bit. But there was something else... I don't know... desire? As I sat there, I already knew that I wanted her to do it again."
"Very interesting. Why do you think you wanted your wife to cheat on you again?"
"Honestly... I've been asking her for anal sex for years. Summer always told me anal wasn't her thing." Ben answered. "But seeing how easily that massive penis slid up her butthole, it's obvious that she's no stranger to having a cock in her ass."
"Got it." Serena said. "So in a way, you were able to live vicariously through the man who was making love to your wife's rear end?"
"I guess?"
"Fantastic!" Serena added. She then turned her attention to Summer. "Is your husband's assumption accurate? Would you consider yourself to be seasoned and experienced in regards to anal sex?"
Summer grinned and nodded. "Yes, I've had a lot of experience with it."
"And was it only with the gentleman your husband saw you with?"
"His name is Greg." Summer told her. "And no, I've enjoyed anal sex with lots of different guys."
"Greg." Serena repeated, writing down the name of Summer's lover. "So... you say that multiple men have engaged in anal sex with you, Summer. May I ask why you're hesitant to allow your own husband penetrate your anus?"
Summer took a deep breath and grabbed Ben's hand, giving it a squeeze.
"Like Ben said, we love each other. And he is my soulmate." Summer began. "I have no problem having sex with my husband. But for me, if I'm going to allow a man to use my ass... I want it to be memorable. Powerful. I need him to have... a certain length... you know?"
"Ah, I see." Serena said. "And I'm guessing that you feel your husband doesn't meet this length requirement?"
"Exactly. But we've talked about it before and Ben is aware of my feelings on the matter."
Serena smiled and turned back to Ben. "Would you feel comfortable discussing the topic of penis size with us today, Ben?"
"That's fine. We're here to be open and honest, right?"
"That's right." Serena confirmed with an excited giggle. "So Ben... can you tell me how you measure up when you're fully aroused?"