Dennis Mitchell was a very good math student, but was completely absorbed in the profile of Gina's tits straining her shirt when his math teacher called on him to go to the board and demonstrate the use of vectors to solve a common problem. Somewhat flustered, he got up, trying to hide his boner and made his way to the board. The problem was relatively simple, but to Dennis, it looked like a long "vee" extending from Gina's left breast to her pussy and then back up to her right breast. Nestled in the "vee" was Dennis's hard cock.
Completely exasperated, he was spared further embarrassment by the bell ending the class. After retrieving his books, he left without making eye contact with the teacher, and upon reaching the hall, looked directly into the laughing eyes of Gina. She was trying unsuccessfully to control her laughter and when Dennis started to protest, she pulled his face to hers and planted a long, deep, tongue-probing kiss on his mouth.
Her soft breasts pushed against his chest, making his erection even more noticeable.
"Just what were you thinking?" she asked seductively.
"You know what I was thinking," he answered breathlessly. "Sitting there with your tits about to pop out of that shirt, your nipples poking out about an inch-what else was I supposed to be thinking?"
"Aww, that's so sweet. No wonder I love you!" she said, hooking their arms together and beginning the walk to the parking lot. They had started dating in junior high and had consummated their love when they were both eighteen and felt they were ready. Like their relationship, their sex life was casual, yet hot.
Dennis had grown into quite a handsome young man, quarterback on the football team and a decent baseball player. As such, he was a hunk in every sense of the word. His cock was no exception, hanging down his leg when soft and standing eight inches when erect. Gina, likewise an athlete, played volleyball and softball and was very good at both sports. Her body, while lithe and somewhat slender, was one of those that drove men crazy. Long muscular legs that ended at a perfectly shaped and sized ass; her waist was tiny, and her breasts, while not massive, were a very healthy c-cup that gave her perfect proportions. She also had a very healthy sexual appetite, and often initiated sex when she and Dennis could make time for each other.
"Remember our plans for this weekend?" she asked, as they arrived in the parking lot.
"Yeah. Boy is Joey gonna be surprised!" Dennis answered, his face breaking out in a huge smile. "What an eighteenth birthday present!"
"You sure you don't mind if I give him his first piece of ass for his birthday?" she asked, leaning in to press her breasts against his chest, pecking him lightly on the cheek. "No, not at all. I know you're my girl and Joey is my best friend. I'd rather he lose his virginity to you than some skank that may fuck him up mentally. Just show him how good it can be and there are no strings attached. After all, I'll be there with both of you," he answered, grabbing her ass and holding her against his stiff cock.
She playfully pulled back and said, "Hold on there big boy! Just be at my house at seven and have that monster ready to party. Joey's not the only one getting a surprise tonight!" she said as she bounced to her car and sped away.
Somewhat puzzled, Dennis took his time getting home, but still had time to finish his homework and eat before showering. Seven sharp found him driving into Gina's garage, parking in the space left by her vacationing parents. After closing the garage door, he rang the kitchen doorbell, and was greeted by his scantily clad girlfriend with a kiss that almost made him forget the real purpose of the evening. Her super tight gym shorts displayed her amazing cameltoe, and her cutoff t-shirt ended just below her nipples, which were standing proudly on her breasts.
"Damn Gina, you must want to get fucked before Joey gets here," said Dennis, as he wrapped her in his arms and massaged her body from top to bottom. Cupping a breast and rolling her nipple, he breathed in her ear, "What time's Joey getting here? I may have to fuck you first."
"Much as I'd like that, we agreed that tonight was for Joey, right? Anyway, I think your surprise will help you make it through the night," she said as she scampered upstairs to shower. Dennis sighed and set about making the preparations they had agreed on, and heard Joey pull in the driveway just as he heard Gina's shower end.
Joey had always been smaller than Dennis, and rather than athletics, he had concentrated on academics. His horn-rimmed glasses added to his geekiness, and he had never had a date. Still, he and Dennis were best friends and would do anything for each other. Tonight was to be proof of that fact.
Dennis answered the door and ushered him into the living room, saying "Hey, Bud. Nice shirt. You always have been the best dresser."
"Thanks Dennis. I got it for my birthday. I really appreciate you and Gina throwing this party for me. Where's everybody else?" he asked, looking around at the darkened house.
"Be patient. They'll be here. Let me put this blindfold on first."
When the blindfold was in place, Dennis looked up to see Gina standing at the foot of the stairs, silhouetted by the stairwell light. "Fuck! She's beautiful!" thought Dennis as Gina posed sexily for him. Her hair, still damp from the shower hung down to her shoulders, framing her face. She was wearing a sheer, white baby doll negligee that draped over her breasts and highlighted her stiff nipples. The matching panties were barely visible, but she turned and bent slightly to show Dennis her ass. As she got closer, he could see her nipples and the dark landing strip on her pussy.
She stopped in front of Joey and said softly, "Hello, Birthday Boy. You ready to open your present?"
Joey, still unaware of the pairs' intent, swallowed and said, "I guess so. What do I need to do?"
As she straddled Joey's lap with her knees, she put her breasts very close to his face. Inhaling Gina's intoxicating perfume, Joey asked, "Dennis, what's going on? Is this OK? What am I supposed to do?"
"You are my best friend. I know you are still a virgin, and want desperately to get laid. Gina has agreed to help you out, with my blessing. She's gonna teach you how to please a woman with that big dick of yours," said Dennis as he took a seat to the side. "I'm here to observe and answer questions. I may even jack off if it gets hot enough."
Gina took Joey's face in her hands and bent to give him his first sexy kiss. She spread her knees, lowering her thinly covered cunt onto Joey's crotch and could feel his cock growing as she probed his mouth with her tongue. Without breaking the kiss, she took his hands and placed the palms on her breasts, moving them around so he would get the idea. Finally she said, "Well, Joey, what do you think so far?"
"Gee, I didn't know a girl's breasts felt this way. I mean, I knew they would be soft, but yours are wonderful!" he answered.
Taking his thumbs and forefingers, she taught him to roll her nipples, saying softly, "Joey, that's the way into a girl's pants. Treat her tits right, and she's yours."
Gently grinding down on his erection, she said, "Oh, Joey. Your cock feels so big! Can I see it?" she asked as she slid off his lap and unzipped his jeans.