I only knew that when I saw my foster father making love with his secretary, my cock got rock hard, and my whole body started heating up like I had a fever.
But back then, I had no clue that it was just arousal. So, like an idiot, I ran to take a cold shower until I cooled down.
I never imagined Emily had such a high sex drive.
"Since you want it so bad, I'll give it to you tonight," I said, lifting Emily off the washstand, turning her to face me, and sitting her back down.
I spread her legs wide on the washstand, her knees apart as far as they could go.
Her pussy was fully exposed, her clit standing out, with traces of vaginal fluid and a bit of semen below, whipped into a creamy mix from my earlier thrusts.
I touched it with my fingers, feeling a granular texture.
I wiped the creamy mix on Emily's nipples with my fingertips, making them erect, then rubbed them evenly with my nails, pinching the edges and rubbing with my fingertips.
Emily leaned against the mirror, shivering with pleasure.
Then I squeezed her other breast like I was milking a cow, pushing the nipple upwards, and buried my head to suck on it.
My rough tongue licked her nipple, making it stiffen again.
She pushed her chest towards my mouth.
I opened wide, taking in her entire nipple and areola, sucking eagerly while gently pulling her breast outward. With each pull, I turned her soft flesh into a firm, erect shape.
"Don't pull so hard! Be gentle... it hurts," Emily pleaded, pushing my arm, trying to push me away.
But her strength was like a gentle massage, barely affecting me.
Annoyed by her scratching, I grabbed her hands and brought them to her pussy.
She took over, her fingers finding their way to her own pussy. Her legs started to squeeze together involuntarily.
I stepped forward, pressing my lower abdomen against her, stopping her legs from closing.
Unable to close her legs, she instinctively wrapped them around my waist, her toes tightly interlocking behind me.
My cock was slick with Emily's juices. I slid my hand under her butt, gripping my shaft firmly. Slowly, I guided it into her wet, eager pussy. As I pushed deeper, we both moaned in pure pleasure.
My cock was tightly enveloped as it entered her warm, narrow pussy, causing it to throb uncontrollably inside her.
With each throb of my cock, Emily's pussy tightened around it, gripping me tightly.
Even pulling out felt way harder than usual.
Holding her legs firmly, I spread them wide and swiftly entered her wet pussy. With each thrust, I pulled out partially before driving back in forcefully, hitting her most sensitive spot every time. As I did, Emily’s lower abdomen tightened, her pussy gripping me, almost making me come.
"Don't squeeze so tight, do you want me to come?" I snapped.
"Your cock is too big... I can't control it at all," she muttered.
I thrust vigorously for dozens of times, and her pussy began to contract rapidly, tightly gripping my big cock.
Then Emily's abdomen started to spasm as she hit an orgasm.
This one was intense, her pussy clung tightly to my throbbing cock, drawing out my desire to cum.
My cock trembling, my lower back tingling, and I couldn't help but ejaculate.
With each spurt, I thrust my hips, driving my cock deep into her, pressing it as far as I could.
Emily's abdomen kept trembling, especially her pussy, shaking like there were waves inside.
My cock kept spurting intermittently, taking about two minutes to release all the cum.
When I pulled out, it was still trembling uncontrollably.
I was panting hard, my breath rough against her flat abdomen.
After I pulled out, Emily's legs dropped, swaying in the air, her pussy exposed on the edge of the washstand.
The cum I shot deep inside her started to flow out, lingering at the entrance of her vagina. With each tremble of her legs, it dripped down, falling to the floor. The sight of the white cum pooling on the reflective floor was incredibly erotic.
Once she calmed down and stopped trembling, I carried her to the shower to clean up.
I turned on the shower head and washed away the sweat and cum from our bodies, then carried her out of the bathroom.
I laid her on the bed, tossing a bathrobe over her to let her dry off.
Then I went to the window, opening it to air out the room and get rid of the lingering scent of our wild encounter.
When I came back, Emily had already put on her nightgown and gone back to her room.
I returned to the bed. The sheets and pillowcases were a mess, covered in the evidence of our lovemaking.
A wave of guilt suddenly surged through me as I thought of Catherine.
Trying to clear my conscience, I stripped the bed of all the sheets, duvet covers, and pillowcases, tossing them into the washing machine. Reluctantly, I used just the duvet to sleep.
The next morning, my phone alarm went off.
I stretched lazily in bed, not feeling too tired from staying up late.
Instead, I felt super energetic, like I'd gotten rid of all the discomfort in my body.
I got up to wash in the bathroom, and when I came out, John had already put milk and bread on the table as usual.
After eating, we didn't bother to clean up and went straight to work.
With John around, Emily and I kept our distance to avoid suspicion.
At the office, John got called by his team leader to discuss work.
Emily took the chance to sit next to me under the pretense of work.
She leaned in, one hand on the chair behind me.
The other hand seemed to reach between our legs, but really, it was on my crotch.
To avoid being noticed, she was cautious at first, just touching my cock through my pants.
As others got busy with projects, she got bolder, unzipping my pants and slipping her hand inside.
She groped up and down through my underwear, making my cock hard, then slid her slender finger to the edge of my underwear, against my skin, and slipped it inside.