Revenge Beneath the Surface

The heat inside the tent was thick, almost sticky. I was lying on my back, and she—Lena—was sitting beside me on the inflatable mattress, adjusting the strap of her bikini. Her eyes had been locked on my face for a few seconds now, and in them, I could clearly read that same hunger I'd noticed on the shore when I'd helped her into her wetsuit. Lena's fingers brushed against my forearm, leaving a trail of heat behind.

"You know, Alex," she said quietly, "my husband always said diving is about trust. But today, when you held my waist underwater… I suddenly thought how easy it would be to cheat on him. Right here."

I smirked, trying to play it off as a joke.

"Whoa, straight to the point? I thought we were just checking if you remembered how to breathe through the regulator."

Lena leaned closer. Her damp hair fell onto my shoulder, the smell of sea and her skin hitting me like a wave.

"This isn't a joke, instructor. He texted again yesterday saying he 'got held up at a meeting.' Third time this week. And here I am, in this goddamn tent, with you. And I suddenly want… revenge."

Her palm landed on my chest, right over the thin fabric of my t-shirt. My heart started pounding harder. The tension built slowly, like a current in deep water—invisible but unstoppable.

"Lena… are you serious?" I asked, though I could already see her nipples pressing through the fabric of her bikini.

"Absolutely." She traced a finger down my stomach. "I want you to fuck me. Right now. So I can look him in the eyes later and know I paid him back."

I sat up, grabbed her waist, and pulled her to me. Our lips met hungrily, without tenderness. Her tongue pushed into my mouth, demanding and hot. Lena's hands were already tugging at my shorts while I worked on the knots of her bikini. The fabric fell away, revealing her full breasts with hard nipples.

"God, those tits…" I breathed, cupping them in my palms.

"Suck them, Alex," she whispered, threading her fingers through my hair. "Harder. I want to feel it."

I leaned down and took one nipple in my mouth, running my tongue over the sensitive bud. Lena arched her back, letting out a soft moan. My other hand slid between her thighs, under the thin strip of her bottoms. Her clit was already swollen and slick.

"You're soaking wet…" I murmured, running a finger along her slit.

"Because I want you. Deep." Lena pushed me back onto the mattress and pulled my boxers off completely. My cock stood rock hard, the head glistening with pre-cum. She wrapped her hand around it, stroking slowly up and down. "So thick… My husband can't compete."

Without waiting for an answer, she leaned down and took me in her mouth. Her hot lips sealed around the shaft, her tongue swirling around the head. I grabbed her hair, holding back so I didn't thrust too hard. The sounds were wet, sloppy—she sucked greedily, taking me almost to the base.

"Lena… fuck, that feels so good…" I groaned.

She looked up, not letting my cock out of her mouth.

"I want you to fuck me. From behind. Like a whore."

I flipped her onto all fours. The tent filled with the smell of arousal and sea salt. Wind rustled outside; inside, there was only our heavy breathing. I ran the head of my cock along her wet pussy, teasing her clit, then slammed in to the hilt. Lena let out a loud moan, gripping the sleeping bag.

"Yes… just like that… deeper!" she cried.

I started moving hard and rhythmic, my hips slapping against her firm ass. Each thrust made her tits swing. I leaned forward, cupping one breast and squeezing her nipple.

"Can you picture him looking at you tomorrow?" I whispered in her ear. "While you know my cum is still inside you."

"Yes… oh god, yes…" Lena pushed back, impaling herself on my cock. "Fuck me harder. I want to come on your dick."

I sped up, feeling her walls clench around me. Wet sounds filled the tent. She was trembling, her fingers clawing at the fabric. I reached around and started rubbing her clit in circles.

"Come, Lena. Come for me."

Her body tensed, her back arching. She screamed, squeezing around my cock in powerful spasms. Squirting sprayed across my thighs, a wet stain spreading over the sleeping bag. I couldn't hold back—I drove in a few more hard thrusts and came deep inside her, flooding her with hot cum. The waves of orgasm rolled on, and I kept moving slowly, pushing out the last drops.

We collapsed onto our sides, breathing hard. My cock was still inside her, slowly softening. Lena turned her head, smiling through her tangled hair.

"Thanks…" she whispered. "Now I can definitely look him in the eye."

I ran my hand along her damp thigh.

"If you want a repeat… tomorrow after the dive, I'll be your instructor again."

She laughed softly, squeezing me from the inside.

"Deal. But this time… maybe we try it in the water?"