Tempting My Brother’s Best Friend

14

Ethan stood frozen in the bathroom for a long moment after Mia slipped out, his c**k still throbbing painfully in the open air. The denial burned. His balls felt heavy and tight, the orgasm that had been so close now coiled painfully inside him with nowhere to go. He gripped the edge of the sink, breathing hard, trying to will his erection down before he had to walk back into the living room.

It didn’t work.

He splashed cold water on his face, adjusted his sweatpants as best he could, and stared at his reflection. His cheeks were flushed, eyes dark with frustration and something deeper he didn’t want to name. He looked guilty. He felt guilty.

When he finally returned to the living room, after getting Sarah her soda, the movie was still playing. Jake and Lila were laughing at a scene. Sarah glanced up at him with a small smile.

“Got lost on the way to the kitchen?” she teased lightly.

Ethan forced a chuckle and sat back down beside her, careful to keep the blanket over his lap. “Something like that.”

Mia was back in her armchair, legs tucked under her, looking perfectly innocent as she ate popcorn. She didn’t look at him. But when Sarah turned her attention back to the screen, Mia’s eyes flicked to his for one brief second. The corner of her mouth lifted in the tiniest, most wicked smile.

Ethan’s c**k gave another painful twitch.

The rest of the movie was torture.

Every shift of Mia’s body, every soft laugh she let out, every time her foot accidentally brushed his under the blanket sent another jolt through him. He was still hard, still aching, the denied release making him hypersensitive.

He could feel the damp spot in his sweatpants where he had been leaking. He kept his hands clenched on his thighs, trying to focus on the screen, but his mind kept replaying the bathroom — her warm mouth, the way she had looked up at him while she sucked him, the smug little smile when she pulled away.

When the movie finally ended, Jake stretched and yawned. “That was decent. Lila, you staying the night?”

Lila grinned. “If you’ll have me.”

Sarah stood and stretched too. “I should head home soon. Early shift tomorrow.” She leaned over and kissed Ethan’s cheek. “Walk me to my car?”

Ethan nodded, grateful for the excuse to move. He stood carefully, keeping the blanket in front of him until he could adjust discreetly. As they walked outside, Sarah chatted about her schedule , but he barely heard her. His mind was still in the bathroom. Still on his knees. Still on Mia’s tongue.

When he came back inside, the house was quieter. Jake and Lila had disappeared into Jake’s room. The lights were dimmed.

Mia was in the kitchen, rinsing the popcorn bowls.

Ethan stopped in the doorway, watching her. She looked so normal — humming softly, hair falling over one shoulder. But he knew better now. He knew exactly how she tasted. How she sounded when she came. How she could bring him right to the edge and leave him there.

He stepped closer.

Mia turned, drying her hands on a towel. Her eyes met his. That same small smile returned.

Ethan crossed the distance in three strides. He didn’t touch her. He just stood close enough that he could feel the heat of her body.

“You can’t keep doing that,” he said, voice low. “Not with everyone right there.”

Mia tilted her head. “You seemed to like it.”

“I was two seconds from coming in my pants while my girlfriend was sitting next to me,” he hissed. “You left me like that on purpose.”

She stepped even closer, her chest brushing his. “And what are you going to do about it?”

Ethan’s hands flexed at his sides. The frustration from the denied orgasm was still burning hot in his veins. He wanted to push her against the counter. He wanted to finish what she started. He wanted to hear her beg again.

Instead, he took a shaky breath and stepped back.

“We can’t keep playing this game, Mia.”

She watched him for a long moment, then gave a soft laugh.

“It stopped being a game a long time ago, Ethan.”

She walked past him toward the stairs, her hips swaying gently in the short dress.

At the bottom step she paused and looked back over her shoulder.

“Sweet dreams,” she whispered.

Then she disappeared upstairs.

Ethan stood alone in the kitchen, c**k still half-hard, body buzzing with unspent need and a growing sense of dread.

He was losing control. And the scariest part was how much he didn’t want to get it back.

The next morning, the house felt quieter than usual.

Lila had left early that morning. It was just the three of them — Jake, Ethan, and Mia. Jake was in a good mood, humming as he made coffee. Ethan, on the other hand, looked like he hadn’t slept. Dark circles under his eyes, jaw tight, movements stiff. He avoided the kitchen as much as possible, choosing to drink his coffee on the back porch instead.

Mia watched him from the window, a small smile playing on her lips. She knew exactly why he was avoiding her.

Around noon, Jake announced he was heading out. “Lila needs help picking up some heavy groceries for her mom. I’ll be gone a couple of hours. You two good here?”

Ethan opened his mouth to say he’d come along, but Jake waved him off. “Relax, man. You’ve been working hard on the pool. Stay and chill.”

Jake grabbed his keys and left, the front door clicking shut behind him.

The house fell silent.

Ethan stayed on the porch for another twenty minutes, trying to steady his breathing. He told himself he would keep his distance today. No more slip-ups. No more letting Mia push him to the edge.

Then he heard soft footsteps behind him.

“Ethan?”

He turned. Mia stood in the doorway wearing the most dangerous thing he had ever seen her in — a tiny white crop top that barely covered the underside of her breasts and a pair of soft gray shorts so short they looked more like underwear.

The top clung to her perky breasts, the thin fabric doing nothing to hide her hardened n*****s. The shorts rode high on her hips, showing the smooth expanse of her stomach and the lower curve of her ass.

She was holding her biology textbook against her chest.

“I still don’t understand that chapter we were talking about,” she said innocently, biting her lower lip. “The reproductive system part. Can you explain it again?”

Ethan’s mouth went dry. His c**k twitched instantly in his shorts, remembering how she had looked spread out in the truck, how she had tasted, how she had denied him last night.

“Mia…” His voice came out rough. “Not today.”

She stepped closer, the textbook lowering slightly so he could see the way her n*****s pressed against the fabric. “Please? Jake’s gone for hours. It’s just us. I really need help.”

Ethan’s hands clenched at his sides. He could feel himself hardening, the memory of her mouth on him last night flooding back. The denial still ached.

He should say no. He should walk away.

Instead, he heard himself say, “Fine. In my room.

Quick.”

Mia’s eyes lit up with triumph, but she kept her expression sweet and innocent as she followed him down the hall.

Once inside Ethan’s room, she closed the door behind

her and sat on the edge of his bed, crossing her legs slowly. The shorts rode up even higher, revealing the crease where thigh met ass.

She opened the textbook on her lap and pointed to a diagram of the male reproductive system. “This part. The… arousal response. Can you explain how it works again? In detail?”

Ethan stood a few feet away, arms crossed, trying to keep distance. But his eyes kept drifting to her breasts, to the way her n*****s were clearly visible, to the smooth skin of her thighs.

“It’s… blood flow,” he said, voice strained. “Parasympathetic nervous system triggers vasodilation. The tissues fill with blood, causing… erection.”

Mia tilted her head, looking up at him with wide, innocent eyes. “And what if someone is trying really hard not to get hard? Does it still happen?”

Ethan’s c**k was already half-hard again, pressing against his shorts. He shifted his weight. “Sometimes the body doesn’t listen to the brain.”

Mia smiled sweetly and uncrossed her legs, letting them fall slightly apart. “Interesting. So even if you tell yourself you shouldn’t want something… your body might still react?”

She leaned forward slightly, the crop top dipping lower, giving him a clear view of the soft inner curves of her breasts.

Ethan’s breathing grew heavier. The air in the room felt thick, charged with the same dangerous tension from the truck and the bathroom last night.

“Mia,” he warned, but his voice lacked conviction.

She stood up slowly, closing the textbook and setting

it aside. She stepped closer until she was right in front of him, close enough that he could feel the heat radiating from her body.

“I’m just trying to learn,” she whispered, her hand

lightly brushing his chest. “You’re supposed to be teaching me, remember?”

Ethan’s hands flexed at his sides. He wanted to grab her. He wanted to push her onto the bed and finish what they started last night. The denial from the movie night still burned in his veins, mixing with the fresh wave of desire.

But Jake could come back any minute. And that thought only made the tension sharper.

Mia looked up at him, lips parted, eyes dark with the same need he was fighting.

“Are you going to teach me, Ethan?” she asked softly. “Or are you going to keep pretending you don’t want to?”