Katherine lets him in

Katherine sucks on her lip and closes her eyes as she braces for entry. She feels a bulge press against her and her temple opens to give way. Her body actually backs up a little because of the swing, but gravity pulls her back onto the man’s pestle. She shivers as it inches into her.

“Fuck… yeah! You really are tight!” the boyfriend admits.

Katherine keeps feeling herself being filled up. She is surprised about how deep he is going in! Finally, she feels warm flesh flatten against her bottom. She exhales and opens her eyes. The boyfriend has his hands over her hips and his groin is jutted out at her with his cock deeply entrenched in her sex. Before she can react to what she is seeing, he gives the swing a test pump. It bounces her up and down his dick with a smack. He does it again. The same response.

“Ooh… this is nice…” he tells his girlfriend. “We might have to pick one up!”

“I can’t wait to try it,” his girlfriend replies. Katherine can’t see her but she can hear clothing rustling which tells her that the other woman is already undressing.

Meanwhile, the boyfriend is picking up his pace, slapping his hips into Katherine. Katherine can’t deny the wondrous sensation of practically floating in the air while she gets pistoned by a virile young stud. If it was under any other circumstance, she might actually be enjoying herself, but her grudge against her sister prevents her from fully accepting the experience.

Slender hands run up and down her body again. Katherine tilts her head to find the now fully nude girlfriend rejoining the party. She leans in and sucks on Katherine tits as her boyfriend continues to pound her pussy.

The swinger couple turn to each other and begin to make out while fondling and fucking the girl in the swing. Katherine starts to feel like a piece of furniture for the pair to play on.

“Let me taste you in her,” the girl requests, pulling the boy off of Katherine

Katherine gets pushed back as the girlfriend moves between her and the boyfriend’s throbbing hard cock. The empty void that the phallus once filled is replaced by the girlfriend’s warm, wet lips. Katherine gets pushed up to the girlfriend’s shoulders as the other woman shoves her tongue inside and wriggles around. Katherine moans and shivers, becoming overwhelmed by the new sensations.

Glancing down, Katherine watches the girlfriend wiggle her ass and present it towards her boyfriend. He gives her a flat palmed slap that rings throughout the demo room, then shoves his eager cock inside her. The girlfriend moans into Katherine’s pussy. With each thrust that the man gives, the girl’s tongue sinks deep into Katherine’s snatch with the same vigor.

“Ahhh!” Katherine cries out at the very end of the party train. The locomotion has only just left the station too! The man works into a fluid motion, smacking his hips into his girl’s ass. Each thrust translates into a tongue stroke inside Katherine. Katherine finds herself panting heavily and can hear and feel the others begin to breathe harder as well. As they fall into a steady pace, she can feel the intensity grow in the lady between her legs. Looking down again, she sees the other woman’s legs being carried by her man. The girl tightens up her body, keeping it stiff for the man to rock back and forth. She is being used as a conduit for her man’s dick!

Katherine feels every thrust as a tongue stroke and gets pushed back by its ****, only to rebound back and smush into the other woman’s face. This squeezes her into her boyfriend’s crotch and forces him to brace against them and push back. It is an endless, erotic cycle.

Soon, Katherine’s sensitive pussy cannot contain it anymore. She is on the edge of a climax.

“Ah… you’re going to make me cum…” she tells the couple.

“Do it…” the man urges.

“Yeah, cum all over my face…” the girlfriend begs between sloppy licks and sucks.

“Ngh…ngh…” Katherine whimpers, feeling totally used and even more ashamed for enjoying it. She no longer wants to fight her body and finally lets go. “Aaaah!!” She cries out and shudders as the orgasm washes over her. She can feel herself leaking onto the girlfriend’s face.

“So hot…” the boyfriend comments as his lady laps up the swing model’s pussy.