Sis and Wife’s Sis Need My Help
Copyright© 2026 by WildcatF4F
Chapter 10: Mark and Gloria?
Incest Sex Story: Chapter 10: Mark and Gloria? - This is a light-hearted saga beginning in the early 1960s about a couple madly in love and their good friend. Although the couple has to deal with their sexuality early on, they become comfortable with each other's sex and love. The husband is called upon to help his sister and his wife's sister with their sexual deficiencies.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Consensual Romantic Heterosexual Fiction Humor Incest Brother Sister InLaws Masturbation Oral Sex Tit-Fucking
Two days after our little “educational” threesome, I had to fly off for a month-long consulting gig at various military bases around the world. Rita and I only managed two quick phone calls and a handful of faxes, so I was completely out of the loop on the home front drama.I got home one warm afternoon in late September. Rita met me at the front door like a woman who’d been saving up for thirty days. She grabbed me in a death hug, and we kissed like horny teenagers who’d just discovered tongues. She was wearing a thin tank top (no bra) and tiny shorts (no panties — I confirmed that with one strategic hand slide).
We practically ripped each other’s clothes off right there in the entrance foyer. I picked her up, carried her three steps into the living room, and dropped us onto the plush carpet. Within seconds, I was inside her. She came fast — as usual — then had a second and third orgasm before I finally unloaded. When we finished, I noticed a suspicious wet spot on the carpet and made a mental note: We’re definitely paying for professional cleaning on this one.
I mixed us two strong Dark and Stormys, and we settled by the pool. I glanced over at the guest house. “Lights are off. Where’s Gloria?”
“She moved out a few days ago. Got her own place. The assistant tennis pro from the club has moved in with her.”
“He’s just a kid! What the hell?”
“He’s twenty-five. I’m afraid we may have created a monster.”
“Sounds like it...”
“Oh, you haven’t heard the best part. A few days after you left, Gloria invited Mark over. You know Sheila left him just after you left?”
“Of course, I knew that,” I lied smoothly. (I had zero idea, but I wasn’t about to interrupt a good story. I never liked Sheila anyway.) Rita continued, “Mark showed up in regular clothes. Gloria was already in the pool wearing — get this — a white thong. It barely covered anything. Her ass cheeks were fully out, and the front wasn’t doing much better for her tits or pussy. Gloria told me to fix Mark a martini, then invited him into the pool. He said he didn’t bring a suit. She just smiled and said, ‘Skinny dip — I’ve already seen you naked. If it makes you more comfortable, I’ll take mine off too.’ Then she peeled off that pathetically tiny thong, waved at him, and said, ‘Jump in.’”
“By the time I came back with the drinks, they were both buck-naked in the pool making out like two drunk prom dates. I set the glasses down and just stood there watching the show.”
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