My Girlfriend's Mother is an AV Actress - Chapter 35

 What the Suzumura Household Utterly Lacks (Sexual Boundaries)

Once night fell, I was on the phone with Erika. Talking to my little sister on the phone feels a bit awkward. That said, the actual content of our conversation was incredibly raw.

"Now that I'm back home and my head has cleared a bit, today's events are just totally impossible, aren't they? You're cheating with Suzumura-senpai's mom, creampieing her like it's no big deal, and on top of that, we ended up having a four-way... Plus, I even stripped naked right in front of you, Big Brother, and ended up surrendering my first kiss to Suzumura-senpai... That house is completely insane. Big Brother, is it really okay for you to keep living there?"

Ah, yeah. When you look at it rationally, the Suzumura household is pretty out of control. When Erika first uncovered the affair, she berated me as a "horny monster, beast, pervert," but the true beasts and horny monsters are Honami-san and Hitomi-chan. I am ultimately nothing more than bait acting as a zookeeper.

"Anyway, make sure you forget about all of that, Big Brother."

Well, the fact that she isn't calling me a shitty brother means Erika still has a shred of cuteness left in her. I decide to tease my little sister a bit.

"Which part exactly am I supposed to forget? The part where you stripped naked in front of me and spread your pussy to show me deep inside? The part where you embraced Hitomi-chan, shared your first kiss, and let her grope your breasts? The part where you enthusiastically drove a dildo into Honami-san's anus? Or the part where you went full lesbian and declared you were surrendering your virginity to Hitomi-chan?"

"All! Of! It! Every single bit of it, you shitty brother!"

Through the phone, I hear the sound of Erika slamming her chair back as she stands up. Did she accidentally trigger a button or something in her frantic movement? A sudden gasp echoes clearly through the line.

"Ah... wait, don't..."

Erika frantically mutes her audio, but it's already too late. There is absolutely no way my ears could mistake Honami-san's gasping voice.

"Erika, that audio just now was from 'Female Convict Honami Wakamura's Lesbian Prison of Hell ~I'm Innocent. Someone Please Save Me~' that you borrowed from Honami-san, wasn't it? It's useless trying to play dumb; I've watched that one myself, remember."

"...Yeah, so what..."

Erika reluctantly fesses up. She could have easily brushed it off, but she's surprisingly honest. She's acting like a proper little sister in moments like this.

"Look at you, Erika—you're completely raring to go yourself. Rest easy, I won't count your lesbian sex with Hitomi-chan this Sunday as cheating. Go ahead and scatter your virginity to the wind with Hitomi-chan's strap-on to your heart's content. Oh, if you want me to join in, I don't mind jumping into the mix, you know?"

"No thank you! I want to spend my time strictly one-on-one with Suzumura-senpai! You can just go off and cheat with Senpai's mom all you want, Big Brother. Ah, just make sure you stop doing it in the restroom or the bathroom. I absolutely refuse to walk in on that."

This chick still doesn't seem to fully realize it yet, but her sexual boundaries have plummeted to an extreme low. Then again, when you hang around Honami-san—who treats life like a hurdle race where she blows up the hurdles—and Hitomi-chan—who sprints at full speed completely unbothered by boundaries—it's only natural to get swept along for the ride. I completely feel you on that.

"By the way, you did become my little-sister slave today, didn't you?"

"Eh? That was just riding the wave of the atmosphere in that room, wasn't it? The moment you step outside, a contract like that is completely void!"

I tap my smartphone screen, playing back the audio of the moment Erika spread her pussy open and delivered her slave declaration.

'I, Erika Kagawa... am becoming Big Sister and Big Brother's little-sister slave. I surrender all of my breasts and my pussy to you, so please use me as a tool to process your sexual desires without holding a single thing back.'

"No way... stop it right now! Delete that this instant...!"

Erika's voice turns a little timid. It is definitive physical evidence, after all; Honami-san wasn't wrong when she labeled it blackmail material.

"I have no intention of deleting it, but as long as you execute exactly what I tell you to do, I won't leak it."

"Ugh... fine, I get it. But remember that we're brother and sister, okay...?"

"Of course. As long as you follow my words properly, I'll continue to dote on you from here on out. That goes for Hitomi-chan too, naturally. If you can properly fulfill your duties as my little-sister slave, I'll grant you permission to lose your virginity via lesbian sex with Hitomi-chan exactly as you wish, and I'll condone any lesbian sex you have from that point forward."

Erika hesitates on the other end of the line, carefully choosing her words before responding.

"Understood. I will properly become Big Brother's little-sister slave. In exchange, please let me stay with Suzumura-senpai... I can't completely tell if I legitimately only like girls or if I'm a full lesbian just from watching this video, but at the very least, I am genuinely in love with Suzumura-senpai. I was so incredibly happy when she became my first kiss today... That's why, for Senpai's sake, I'll listen to whatever you say, Big Brother."

Oh boy. She gave her consent with a far more pure-hearted angle than I anticipated. Well, with a mindset like that, she definitely won't betray me.

"Alright. Well, straight to the point: tomorrow, I'm going to test whether you can properly act like a slave."

"Eh? What do you mean by test? What am I supposed to do?"

"Because I'm a kind brother, I'll let you know in advance. Tomorrow during lunch break, you're going to eat lunch in the clubroom, right? Once you're done eating, you're going to give me a blowjob to drain one out. I'll let you choose whether you want to do the blowjob right there in the clubroom or in the boys' restroom."

"...Just with my mouth, right? You won't use my pussy, right?"

"Yeah. You're surrendering your virginity to Hitomi-chan, right? I'll properly protect that promise for you."

It looks like Erika's sexual boundaries have completely vanished into thin air too. She readily accepted delivering a blowjob to her own brother without a fight. Honami-san's training magic is terrifying indeed... and thus, I have unlocked yet another forbidden door.

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