Bethany was in her bedroom recording a session with her friend Rick. Matthew was in his room too, naked and locked in a chastity cage so he couldn't cum while he watched Bethany and Rick fuck for her clients. It was a frustrating situation for Matthew, but he wouldn't have chosen to be anywhere else. Sitting at his desk, his eyes were glued to the monitor that showed the video feed from Bethany's bedroom.
Matthew knew the recording session was on Bethany's calendar and had already planned to spend the evening in his room to watch her and Rick play. It was a fairly regular arrangement with Rick being Bethany's favorite stunt cock for her bespoke erotic videos. Rick and his partner, Zoe, were both frequent visitors to the apartment and they had been guests at the collaring ceremony when Bethany claimed Matthew as her own submissive.
Rick's arrival at the apartment was such a regular occurrence that Matthew had greeted him at the door as usual. Rick was inside and slipping off his shoes as Matthew closed the door before realizing that he was still naked except for his collar and the chastity cage he had worn all day for Bethany. Even with that fleeting moment of anxiousness... what if someone had seen him... Matthew found it less odd when Rick turned to him and gave him a great bear hug to say hello and to pass on greetings from Zoe.
"Zoe said to give you a hug and to tell you she'll be thinking of you getting all horny tonight while Beth and I play."
"Uh...," Matthew paused as the message sank in, "thanks, I guess."
As the men separated, the suddenness of Bethany's voice startled Matthew and drew a chuckle from Rick.
"I'm not going to tell you two to get a room, because I need Rick's cock to myself tonight."
Matthew blushed as he watched Bethany approach. She was wearing a form-fitting little black dress with narrow shoulder straps that barely held the top edge above her nipples. The hem was right at the point where her thighs joined and it was only by careful movement and the tension of the dress material that prevented it from riding up to her hips. The rest of Bethany's outfit was a pair of patterned thigh-high stockings that were a few inches short of reaching the hem of the dress, and a pair of 5-inch stilettos.
Bethany's hair was drawn up in a bun at the back of her head, which ensured the large gold hoop earrings she wore swung freely. Her makeup was bold with smokey eyes and bright red lipstick. Her nails, both fingers and toes, were a bright red to match her lips.
"Hello, Richard," Bethany teased with breathless pronunciation as she allowed herself to be drawn into the circle of his broad chest and muscular arms, "did you bring me my package."
"I did, my lady," Rick laughed, "it's just waiting for you to unwrap it."
"Well then," Bethany replied, "why don't you go to my room and I'll be right along."
"Yes ma'am," Rick said with a wink as he followed her direction.
"And you, my dear," Bethany turned to Matthew, "I have something for you. Come with me."
Mathew followed Bethany down the hallway past her bedroom suite and into the bathroom across from Matthew's own smaller bedroom. On the vanity counter, a small white towel covered something that hadn't been there when Matthew had showered and shaved before waiting for Rick's arrival.
Bethany smiled as she lifted the towel.
"This is for you to ride while you watch us tonight, Matty," she said.
Matthew stared. He swallowed apprehensively.
"Uh,... but... it's so big," he stammered.
"Sweetie," Bethany said softly as she lifted the heavy dildo, "you've enjoyed toys as thick as this for me, and toys that have been as long. This might be the first time we've combined both of those attributes, but I think you'll be just fine. Now, slide it in before I go."
Matthew took the offered dildo and was surprised by its bulk and weight. At nearly eight inches long and an inch and a half thick it was over an inch longer than his own erect cock and noticeably wider.
Falling into the comfortable routine that he followed each time a toy was left out for his ass to be plugged, Matthew reached for the pump bottle of lube that was always next to the sink. Automatically, he lifted one foot onto the stool in the bathroom and leaned forward slightly as he lubed his asshole and pressed two fingers inside.
Bethany moved to the doorway while Matthew started lubricating his rear hole and watched with a pleased smile. Matthew stroked the dildo, covering its head and shaft with the thick lubricant. As he pressed the head of the dildo against his asshole and moved to plant the base on the stool for a downward push, Bethany squeezed her thighs together as she imagined how it was going to feel.
Matthew's practice with their collection of plugs was not a wasted preparation. He gasped as the thick head slid past his sphincter, and moaned as the thick shaft slid deeper and deeper until his ass-cheeks rested on the stool.
"Good boy," Bethany said once Matthew's lidded eyes opened enough to look up at her.
"Thank you, Miss Bethany," Matthew murmured.
Bethany tossed Matthew a small towel so he could start wiping the excess lube from his hands. As he watched, she crossed the small bathroom to stand close and put her hands on Matthew's shoulders. Leaning down, Bethany put her lips close to Matthew's ear.
"That is a gift from Rick and Zoe," Bethany said softly, "It's an exact replica of Rick's hard cock, and now you will know what I'm feeling when he fucks me tonight."
Matthew moaned deeply as his mind absorbed the fact that he was experiencing the feeling of Rick's cock deep in his as and would have it there while he watched Rick fuck Bethany.
Bethany was gone by the time Matthew looked up again. He stood slowly, knowing that when he sat in his desk chair the dildo was going to drive deep inside his ass again.