The project was due in two weeks and the two of them hadn't really even started yet. The two eighteen year old High School Seniors had been assigned as partners, but both being shy hadn't taken the lead in getting things done. It didn't help either that I had lusted over Mary ever since I had hit puberty a few years back.
We were both geeks/nerds in that school was important to us, but whenever Mary was around, my mind tended to go elsewhere. And now we had to work together.
My eyes kept dropping down to the crotch of her pants which were pulled tight up against her body. It formed a lovely camel-toe and I felt my cock begin to fill and lengthen down my leg. I noticed her eyes drop and widen at the sight and it became obvious we were both distracted. My own eyes widened in surprise as I noticed a small wet spot appear at her crotch.
Our project involved sexing fruit flies, so I grabbed a big magnifying glass and began looking intently in the jar of flies we had gathered.
"What are you doing?" Mary asked.
"I'm trying to see which of them has tiny cocks and tiny pussies," I joked.
Mary flushed, and said something under her breath. "I'm sorry, I didn't catch that," I said, though I had and just wanted her to repeat it.
"I said," she blushed, "that with some species, the gender is more obvious!" Staring at my growing cock had gotten her quite flustered.
"I see your point," I replied, staring pointedly at her crotch. "It would be a lot more fun and interesting if we could do this on something other than bugs."
Her eyes met mine as silence filled the room. Her hands played nervously with the button at her neck. My hands had become rather moist, so I rubbed them on my pants legs. I accidentally brushed my cock with my hand and it twitched, sending a small jet of pre-cum out of the head. Now I had my won little wet spot on my pants, though mine was a bit further down the leg than Mary's.
"Paul? Um... did you just... cum?" Mary asked hesitantly. I must have been a shade approaching infrared as I blushed.
"No. That was...um... pre-cum. I leak a lot sometimes when I'm excited."
Mary giggled a bit. "So you're excited now?
"Yeah," I confessed. "I've always been excited around you. Sometimes I have to run into the bathroom before it gets too obvious."
"Really?!? You get excited because of me? I've always gotten excited around you too, Paul. Sometimes my panties would get so wet, I'd need to change them when I got home!"
"Like now?" I teased. Her wet spot had really grown. As had mine.
She glanced down and saw the wet spot on her pants. "Oh no! I can't go home with a wet spot on my pants! My mom will think something happened and I'll get in trouble." She was near tears.
My voice was a near whisper as I suggested, "Well, you could take them off. I have a pair of shorts you could wear, and you could let them dry out."
"You should wear some shorts too, so your pants can dry as well," she replied pointing to my own wet spot.
I got a couple of pairs of gym shorts and she took hers into the bathroom as I quickly shucked out of underwear and jeans. They were short, but they should cover everything.
Mary yelled through the door, "Is it safe to come out yet?" I assured her I was decent again.
She came out wearing the white nylon gym shorts I had given her. They were nicely translucent, allowing me to see the vague shadow of her pubic hair. My cock started to thicken again, and when she plopped down on the floor in front of me, I was able to see right up the leg opening of her shorts to see her bare pussy.
She must have known what she was showing me as her legs remained akimbo and her eyes never left my face as I stared. Her smile grew as she glanced down to my crotch, now at her eye level, as I was still standing. My cock had regrown at the sight of her pussy and had expanded down and out the short leg of my gym shorts. It was now pointing at her, peeking out of the leg opening.
Mary looked back up to my eyes and slowly reached out her hand, grasping my engorged cock, and bringing it fully into view. "It's beautiful!" she said. "I've seen pictures, but never a real one.
"I've never seen a real pussy either," I said, "until now. You're beautiful."
She glanced down at herself and giggled, "Oops!" We both laughed, knowing she was showing herself. "Can we dispense with the pretense now?" she said. She slid the shorts off her legs and pulled mine down as well. "There. Now we can both see what we want to see."
I sat down in front of her, my legs over hers. I was at full mast, a out 6.5", leaking like a Dutch dike. I told Mary I was very close to exploding.
"I want to see it! I want to see you cum!" Her hand slid over my shaft spreading the copious pre-cum all over me. Mary stroked my cock for less than a minute when my cock shot its load. I hadn't expected quite the explosion it provided. Mary was covered in my cum from the tip of her nose all the way down to her beautiful pussy. Her shirt took the majority of my load.
I knew if a small wet spot on her pants would set off her mom, a shirt shotgunned with my cum sure would. "I'm so sorry! I didn't think I'd shoot that hard! Take off your shirt and I'll wash it out real quick."
"You just want to see me naked," she grinned, as she unbuttoned her shirt. She removed her bra as well. "Ta da! There she sat in her glory, absolutely beautiful, and naked as the day she was born.
We both went into the bathroom where we washed out her shirt in the sink, rinsed it well, then hung it in the shower to drip dry a bit. We could finish it with the hair dryer if necessary.