I pretended to be embarrassed, my voice shaky. "Oka-san... I... Iām sorry... I canāt control it... I just..."
Kasumi turned her face back toward me. Her cheeks were burning a deep, beautiful crimson. She quickly placed a trembling finger on my lips, silencing me gently.
"Donāt say anything..." she whispered, her voice breathy and soft. "I know itās not your fault..."
Her black-lace-covered breasts heaved with her quickened breathing, pressing and rubbing softly against my chest with every inhale. The heat from her body was intoxicating.
I shifted slightly, pretending to be ashamed. "Iāll... go outside to get some air..."
As I sat up, deliberately turning my back to her to "hide" my obvious erection, Kasumi quickly reached out and grabbed my hand.
"Itās night... where are you going?" she asked, her voice gentle but slightly husky. "Itās cold outside... Just sleep here."
Before I could move further, Kasumi pulled me back down onto the futon with surprising strength. I turned onto my side, keeping my back facing her as I continued the embarrassed act.
"Oka-san... I donāt know why this keeps happening..." I whispered, voice laced with fake shame. "First in the toilet... and now, as long as Iām with you... I..."
Kasumiās breath hitched sharply. Her body tensed behind me. Through Telepathy, I heard her wild, chaotic thoughts:
[Is he telling me... that he gets this hard because of me...? Me...? What should I do...? My own son-in-law... getting so excited just from holding me...]
The tent fell into heavy silence. I could hear only her rapid, shallow breathing behind me ā warm and unsteady. After nearly a minute, I spoke again, my voice low and apologetic.
"Iām sorry, Oka-san... I donāt know whatās wrong with me..."
Kasumi stayed quiet for a few moments, then finally whispered, her voice soft and soothing, yet slightly trembling:
"Donāt think too much... There is nothing wrong with you. Itās just a normal reaction... I wonāt blame you."
I slowly turned around to face her again. Our faces were now inches apart. I looked into her eyes and asked softly, "Really...?"
Kasumi nodded with a gentle, understanding smile, though her cheeks were still deeply flushed. "It means my son-in-law is in very good health... And that my daughters will be happy and satisfied. There is nothing to be ashamed of in front of your Oka-san..."
As she spoke, her loosened kimono had slipped even further, revealing more of her black lace bra and the deep, inviting valley between her soft, heavy breasts. Her nipples were visibly stiff, poking prominently against the delicate fabric. Her breathing was still slightly uneven, causing her chest to rise and fall sensually.
I could feel the heat radiating from her body. My rock-hard cock remained throbbing between us, the thick head now pressing lightly against her inner thigh through the thin layers of clothing. Kasumiās eyes flicked downward for a brief moment before she quickly looked back up at my face, biting her lower lip.
She reached out hesitantly and placed her hand on my chest, her fingers trembling slightly. "Just... sleep like this. Donāt worry about it. Oka-san doesnāt mind..."
Her voice was barely above a whisper, filled with a complex mix of maternal tenderness and hidden feminine awareness of the thick, hard cock pressed against her body.
Suddenly, a phone rang, shattering the charged silence. It was Kasumiās phone. She flinched, clearly flustered, and reached over to the pillow to grab it.
As she stretched, her already loosened kimono slipped even further open, fully exposing the upper half of her heavy, creamy breasts barely contained by the elegant black lace bra. Her stiff nipples were clearly visible, poking against the thin fabric.
My rock-hard cock twitched violently against her soft thigh at the sight.
Kasumi quickly answered, trying to sound normal, though her voice came out slightly breathless.
"Hello, Tomiko..."
Because we were pressed so tightly together, I could hear Tomikoās voice clearly on the other end.
"Sister~ Where have you run off to with my niece and my precious son-in-law?" Tomiko asked in a playfully dramatic tone.
Kasumiās eyes darted to me nervously. Her cheeks were burning as she replied, "Jack took us camping..."
Tomiko gasped theatrically. "Camping?! Without telling me?! Looks like I have to teach Jack a lesson. He forgot about his Oba-san and went out having fun alone. Hmph! Sister, now you have your son-in-law all to yourself. Even youāve forgotten about your poor, lonely sister. Iām so sad~."
Kasumi tried to stay composed, though her body was still glued to mine, my thick erection pressing hotly between her thighs. "What are you dawdling like a child for? Itās just... Haruna and the others took me shopping earlier... then we unfortunately ran into that woman..."
Tomikoās tone instantly shifted to concern. "What woman?"
Kasumi sighed. "My ex-mother-in-law..."
Tomikoās voice turned sharp with worry. "Sister, are you okay? Donāt listen to a single word that crazy old hag says. She has completely lost her mind. Are you hurt? Did she say something horrible again?"
Kasumiās voice softened. "Iām fine now... Jack brought us here to cheer me up. When we come back, Iāll ask him to take you camping too. Happy now?"
Tomiko let out a cute huff. "Hmph. He calls me Oba-san so sweetly, but didnāt even invite me? Letās see how I deal with that naughty boy. Sister, you canāt save him this time~."
Then Tomikoās voice dropped into a low, mischievous whisper. "By the way, sister... youāre at a camping site, right? Itās dark and romantic... Where are Haruna and Jack right now? They must be doing something very shameless inside their tent, no?"
Kasumiās entire body jolted against me. My thick, rock-hard cock throbbed strongly against her inner thigh the moment Tomikoās teasing words reached her ears. Kasumi instinctively pressed her soft, warm thighs tighter together, squeezing my rigid erection firmly between them. The heat from her core was unmistakable.
"Tomiko...! What nonsense are you saying?!" Kasumi scolded, her voice shaky and filled with embarrassment. "Heās Harunaās boyfriend. Whatās wrong with that?"
Tomiko let out a soft, mischievous laugh on the other end.
"I was just kidding, sister~" Tomiko said playfully, though her tone still carried a hint of teasing.