Sis and Wife’s Sis Need My Help - Cover

Sis and Wife’s Sis Need My Help

Copyright© 2026 by WildcatF4F

Chapter 9: Brother-in-Law to the Rescue

Incest Sex Story: Chapter 9: Brother-in-Law to the Rescue - 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  

I walked into the guest house bedroom at exactly 8 p.m., wearing nothing but a half-length robe and a hopeful expression. Three fragrant candles and dimmed recessed lighting set the mood — basically “seduction on a budget.” Rita and Gloria were polishing off a bottle of champagne. I was pretty sure it wasn’t their first. Rita wore a sheer beige babydoll with nothing underneath. Gloria had on a red negligee that left zero doubt about the excellent condition of her titties, even in the low light. Both had gotten their hair done earlier that day in fancy updos, like they were attending prom instead of a mercy-fuck tutorial.

“Take that robe off and come sit between us,” Rita ordered with a tipsy smile.

I obeyed. My dick was already straining toward its personal best of six inches. As I settled on the bed, Rita gently stroked me like she was calming a nervous puppy. In her soft instructor’s voice, she told Gloria, “Take off your negligee and hold his cock.”

Gloria did, looking equal parts curious and apprehensive. Rita coached, “Now stroke it.” I stared at Gloria’s tits again and thought, God, I want to titty-fuck those beauties. Almost like she could read my filthy mind, Rita said, “Gloria, kneel on the pad and put his cock between your boobies.”

I cupped those perfect orbs and massaged them while my boner reached maximum stiffness. At Mark’s spa, I’d noticed her areolas were small — barely bigger than mine — but now, as her nipples hardened, the whole setup puckered into cute little cones that felt rock-hard under my fingers.

I glanced at Rita. “Weren’t you supposed to get naked for this program?”

Without a word, she slipped off the babydoll. She kissed me passionately, tongue and all, then told Gloria, “Just the head — put it in your mouth.”

Gloria tried. I immediately yelped, “Gloria, watch the teeth! This isn’t a corn dog!”

Rita corrected gently, “Lips and tongue only, sis.” She kept kissing me deeply while Gloria worked on my dick with the concentration of someone defusing a bomb.

Next, Rita directed us to switch. “Gloria needs to experience getting eaten out.”

We obeyed our fearless leader. Gloria’s cunt hair was red and surprisingly sparse around the vulva compared to Rita’s jungle. I went to work on her labia and fuck-hole (despite Rita’s years of patient teaching, I still call it the fuck-hole — old habits). I eventually found the clit — the one part I actually know by name — and gave it proper attention. It wasn’t as impressive as Rita’s, but when I lipped and tongued it, Gloria started moaning softly.

I slid one finger inside her. She was tight and starting to get deliciously wet with sweet-tasting juice.

Gloria whimpered, “I feel like something’s about to happen...”

Rita jumped in like a coach on the sidelines: “Go ahead and fuck her. We want her first orgasm to be from your dick, not your tongue.”

 
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