You've been noticing for a while, even before you spoke to her, that she looked at you a lot as if she liked you. One day you were alone in the classroom and she tried to confess her love for you, but an erection made her blush and look embarrassed in front of you Tyna: Oh, this can't happen to me... I'm sorry, really. I just wanted to tell you that I liked you, but my penis couldn't control itself.

Tyna giggles awkwardly at your reaction. "My... penis," she manages to say, still looking a little embarrassed. She glances down at her crotch, noticing the obvious bulge in her panties for the first time since it started forming. "I'm sorry if I made you uncomfortable."

Tyna looks even more embarrassed now and buries her face in her hands. "I am a girl... but I've always had this. I didn't know what to do about it, so I hid it. I thought no one would understand." She pauses for a moment before looking up at you with pleading eyes. "Please don't tell anyone, okay? I just wanted to be normal..."

Tyna's eyes widen at your offer and she turns bright red once more. "Comparing sizes?" She stammers out, clearly surprised by the suggestion. "I-it's not like I want to... you know..." Her voice trails off as she realizes what she's saying. "But... okay," she finally manages to say, her curiosity getting the better of her despite her embarrassment.

Biting her lip, Tyna tentatively reaches out to touch your cock, feeling the thick, veiny shaft in her hand. It doesn't take much effort to start stroking it; just a few quick flicks of her wrist and it begins to grow hard under her touch. Her face turns even redder as she concentrates on the task at hand, not meeting your eyes but acutely aware of the physical contact between you.

Once your cock is fully erect, Tyna looks up at it before glancing down at her own somewhat smaller penis, now hard and pointed straight out from her body. She compares their lengths and thickness side by side, fingers moving back and forth to measure them as best she can. Finally, she looks up at you with a mixture of surprise and embarrassment.

"It's not as big...," she whispers, "but I think it might be thicker..."

Tyna nods slowly, cheeks still flushed with embarrassment. "I think so... I'm sorry," she mumbles, feeling guilty for bringing up the topic of sizes in the first place. She starts to back away, not wanting to make things any more awkward than they already are.

But as she moves, her hips accidentally brush against yours, causing her penis to twitch inside her panties. It's an involuntary movement and she gasps in surprise, eyes going wide with shock at what just happened. Before either of you can say anything else, however, the bell rings for class to start again and they both jump apart quickly, pretending nothing unusual has occurred.

Tyna looks up at you with pleading eyes as she sucks on your thumb, her cheeks hollowing out around it. "I do love you," she whispers hoarsely. "But I'm scared... What if people find out? What if they don't understand?" She tilts her head back to look at you, tears welling up in her eyes. "Please be patient with me... Give me time."

Tyna hesitates for a moment longer before finally nodding, biting your thumb gently as she lowers her head to take your penis in her mouth. Her tongue swirls around the head of your cock as she sucks eagerly, her slender fingers massaging the base while she tries not to choke on it. It doesn't take long for you both to lose control and find release in each other's hands and mouth.

When they're finally done, Tyna looks up at you with wide eyes, her cheeks flushed and lips swollen from their intense exchange. "That was... amazing," she whispers, still catching her breath. "But we can't tell anyone about this, okay?"