Page 56 of Knot That Serious

“Holy shit, yes yes yes,” Eli whined as the knot pressed against her core. “Give it to me.”

“Not until Jack answers,” Beckett pushed, refusing to move his hand. He nipped at Jack’s throat. “What are you waiting for?”

Jack mumbled some nonsense, barely any volume to the words, and Beckett hummed. “What was that?”

“Too fast,” he admitted breathlessly. “Didn’t want it to end yet.”

“Oh, sweetheart,” Beckett cooed. “This is just the beginning.”

Beckett removed his hand, and Eli curled her legs around Jack’s waist, knees bumping against Beckett until they were both tangled around Jack.

Beckett pushed into Jack, pressing his cock against his ass cheek, and found a place for his hands on Jack’s hips. “Easy, now,” he coaxed, and guided Jack forward.

Jack and Eli’s moans filled the room as Jack’s knot slowly entered Eli. One of her thighs bracketing Jack was shaking, and Beckett smoothed a hand down the outside of it.

As if his gentle touch was electric, she jolted up, and Jack followed her back down, down, down, until Eli stilled beneath him, teeth sinking into her lip, and then—

“That’s it,” Beckett urged, grinding into Jack to find any relief. Eli shuddered beneath them before her lips parted on a cry, tension loosening her body as it flooded away in the crest of an orgasm.

Beckett kept moving his hips, which in turn encouraged Jack to grind into her, to stir his hips against her.

“You can make her come again,” Beckett told him, and placed a palm against the back of Jack’s head. He gently pushed Jack down, until he could take one of her nipples back between his lips. “Then maybe you can come, too.”

Beckett wanted to save his orgasm for the omega currently spasming around Jack’s knot, but couldn’t help rolling his hips into Jack, keeping the rhythm even for both of them. He loved having Jack trapped between them like this, a toy used to please Eli.

As he slid his gaze down to check on Eli, he realized she loved it, too.

“I’m close,” Jack rasped, and deviated from the rhythm as he ground down into Eli.

With a hand in his hair, Beckett stroked his scalp before tightening his grip and leading him to the other breast.

Eli’s eyes were blown wide, nails digging into Jack’s sides and knees still squeezing around his hips. “M’okay,” she choked out. “God, Jack, you feel…”

Beckett nodded when she paused, tongue darting out to wet her dry lips.

“I feel so full,” she admitted, and Jack’s arms were shaking where he was holding them up. “So much better than a toy,” she sighed.

Jack stilled, despite Eli’s whine, despite Beckett’s touch. He lifted his head. “You’ve never—”

“Jack, I only date betas. They don’t have knots,” she whispered.

“I’m your first knot?” he asked, and Beckett, oh, Beckett could hear the devastation in his voice.

“No shit, Sherlock,” Eli quipped, eyes darkening, knees squeezing his sides. “Please keep moving.”

Jack groaned as he did so.

Beckett pressed a smile into his back and slid a hand between their bodies, cupping the heel of his palm over Eli’s mound.

Her head tilted back into the pillows, mouth parting on a moan as Beckett adjusted his angle and stroked a thumb over her clit.

“Ah,” Jack moaned against her skin. “She’s—”

“I know,” Beckett murmured. He could feel her pulsing against his thumb, and continued stroking her through the orgasm until she blinked shiny eyes up at the ceiling.

His hand was slick with her arousal, and Beckett cupped Jack’s chin, sliding his thumb along his bottom lip.

“You can come now,” Beckett told him, and as Jack latched his lips around Beckett’s finger to taste her, his hips kicked into Eli once, twice more before he stilled. His groan was muffled around Beckett’s thumb.

---