Alisa's hands trembled as she took the vial. She coated her fingers liberally, the slick substance cool against her skin, then stepped closer. Her free hand came to rest on Tonks' hip, steadying them both.
"Like this?" she asked, pressing one finger gently against Tonks' entrance.
"Perfect. Now push in slowly. Let me adjust."
Alisa did, feeling Tonks' body resist for just a moment before accepting her finger. The tight heat was different from anything she'd felt before. Tonks made a soft sound—not quite pleasure, not quite discomfort.
"How does it feel?" Alisa asked.
"Good. A little strange, but good." Tonks pushed back slightly, taking her deeper. "Move it. Get me used to the sensation."
Alisa began working her finger carefully, watching Tonks' face in profile for any sign of pain. But Tonks just breathed steadily, her body gradually relaxing around the intrusion.
"Another," Tonks said after a minute. "Add another finger."
Alisa obeyed, pressing a second finger alongside the first, and this time Tonks moaned properly—a low, throaty sound that went straight to Alisa's cock.
"Fuck, that's good," Tonks breathed. "Keep going. Stretch me."
Alisa worked her two fingers slowly, scissoring them gently, marvelling at how Tonks' body opened for her. The sight was intoxicating—Tonks bent over the desk, taking her fingers so willingly, asking for more.
"I think—" Tonks' voice was rough now, breathless. "I think I'm ready. Are you?"
Alisa's cock was leaking precum, desperate for attention. "Yes. God, yes."
"Then put more lube on yourself and take your time." Tonks braced herself more firmly against the desk. "Push in slowly. If I tell you to stop, you stop. Understood?"
"Understood."
Alisa withdrew her fingers—Tonks made a small sound of loss—and quickly coated her shaft with lubricant. Then she positioned herself, the head of her cock pressing against Tonks' entrance.
"Ready?" she whispered.
"Do it."
Alisa pushed forward slowly, feeling the tight resistance, and then—
She slipped inside.
Just the tip at first. Tonks made a sharp sound, her body tensing around Alisa's cock.
"Stop," Tonks gasped. "Just—hold there for a second."
Alisa froze, every muscle locked, fighting the overwhelming urge to push deeper. "Are you okay?"
"Yeah. Yeah, I'm good. Just need to—breathe—"
Alisa watched as Tonks' shoulders rose and fell, deliberately slow. After a moment, the tension in her body eased, and she pushed back slightly.
"Okay. More. Go slow."
Alisa inched forward, watching Tonks' face in profile, ready to stop at any sign of real pain. But Tonks just breathed through it, her body gradually accepting more and more of Alisa's length.
"Fuck," Tonks groaned. "You're big. I forgot how—oh—"
"Should I stop?"
"Don't you fucking dare." Tonks pushed back harder, taking her deeper. "Keep going. I can take it."
Alisa continued until she was fully seated, her hips flush against Tonks' arse. They both let out sounds of relief—Alisa at the incredible tightness surrounding her, Tonks at the fullness inside her.
"How does it feel?" Tonks asked breathlessly.
"Incredible," Alisa managed. The word felt inadequate. "Tight. So tight. You?"
"Full. Stretched. Good." Tonks rolled her hips experimentally, and Alisa nearly saw stars. "Now fuck me. Not too hard yet. Just—move."
Alisa began to move, pulling out slowly before pushing back in. The sensation was different from Tonks' cunt—tighter, more intense, almost overwhelming. And the sight of Tonks taking her like this, the sounds she was making—
She's so fucking beautiful.
"Faster," Tonks demanded. "I can take it. Fuck me properly."
Alisa's grip on Tonks' hips tightened, and she picked up the pace. The desk creaked beneath them with each thrust, and Tonks braced herself better, pushing back to meet her.
"Touch yourself," Alisa gasped. "I want you to come too."
One of Tonks' hands slipped between her legs, and Alisa felt her body clench even tighter around her cock.
"Fuck—yes—just like that—"
They moved together, finding a rhythm, the pressure building in Alisa's core. This was different from before—deeper, more satisfying. This was what her body had been craving. Not just release, but this. Connection. Intimacy. Trust.
"I'm close," Tonks panted. "Alisa, I'm—fuck—"
"Me too—"
"Fill me up," Tonks demanded, her voice ragged. "I want to feel you come inside me—"
The words shattered what little control Alisa had left. She thrust hard once, twice, three times, and then she was coming with a strangled cry, her cock pulsing as she emptied herself into Tonks.
Tonks followed seconds later, her whole body shuddering, clenching around Alisa's cock and wringing out every last drop of pleasure.
When the waves finally subsided, Alisa carefully withdrew. They both made sounds of loss at the separation.
Tonks straightened slowly, wincing slightly as she turned around. "Okay. That was—wow."
"Did I hurt you?" Alisa asked immediately, scanning her face for any sign of pain.
"Hurt me?" Tonks laughed, cupping Alisa's face with both hands. "That felt amazing. And that's exactly what you needed, wasn't it?"
Alisa nodded, unable to speak. Her dick was finally at peace.
"Good." Tonks kissed her gently. "We'll add this to the rotation, yeah? Give you options depending on what your body needs."
"Tonks, I—" Alisa's throat felt tight with emotion. "Thank you. For everything. For understanding. For not making me feel like a burden."
"Stop thanking me." Tonks' smile was warm. "I'm getting plenty out of this arrangement too, trust me."
She pulled up her trousers, fastening them with easy movements. "Besides, now you have some experience under your belt. When the time comes, you'll know what you're doing."
Alisa blinked. "What do you mean?"
Tonks' eyes sparkled with mischief. "I mean that conversation by the lake clearly affected you. Harry Potter, of all people. Can't say I'm surprised—he's got that whole brooding hero thing going for him."
"Tonks—"
"I'm just saying." Tonks leaned in, her voice dropping to a conspiratorial whisper. "When you're ready to have some fun with him too... you'll be prepared."
Alisa froze.
"I—that's not—we just talked—"
"Mm-hmm." Tonks' grin was insufferable. "And yet here you are, harder than I've ever seen you, all because of a chat by the lake."
"The curse doesn't distinguish—"
"The curse gave you a dick, Alisa. The urges may be hightened, but they aren't popping out of nowhere." Tonks tilted her head, studying her. "So what does that tell you?"
Alisa opened her mouth. Closed it. Opened it again.
She had no answer.
Tonks patted her cheek affectionately. "Think about it. Now—you should probably get some sleep. You've got a training session tomorrow evening, yeah? With a certain green-eyed wizard?"
"How did you—"
"You mentioned it. While I had my hand on your cock." Tonks winked. "People tend to be honest in that state."
Alisa's face burned.
"Good night, Alisa." Tonks opened the door, pausing at the threshold. "And good luck tomorrow. I have a feeling you're going to need it."
She slipped out, leaving Alisa alone with her thoughts.
And what complicated thoughts they were.
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Chapter 36: First Lessons
Chapter 37: Secrets
Chapter 38: Café confessions
Chapter 39: Tension
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