The soft hum of warm water filled the bathroom as Scully gently cradled Sabrina in her arms, preparing to place her into the baby tub. The tiny girl squirmed slightly, letting out a small, contented coo. Mulder sat on the edge of the counter, watching intently, his gaze fixed on Scully's careful movements.

This wasn't the first time he'd watched her bathe one of the girls, but something about it always held him captivated. He'd been relegated to dressing duty—a role he took seriously—but tonight, with the other two calmly waiting their turn, he had a rare moment to just observe.

Scully glanced at him, noting the way his eyes softened as he watched her gently splash water over Sabrina's tiny legs. "Would you like to try?" she asked suddenly, her voice soft but inviting.

Mulder blinked, caught off guard. "Me? I don't know, Scully. What if I… what if I drown her?"

Scully chuckled, shaking her head. "You won't. Just be careful—they get slippery when wet."

Mulder hesitated for only a moment longer before rolling up his sleeves. Scully handed Sabrina over carefully, guiding him as he positioned the baby in the water. For a moment, he froze, his large hands seeming comically oversized compared to her tiny frame. But as the warm water touched Sabrina's skin, she looked up at him with wide, trusting eyes, her little fists waving in the air.

Mulder's breath caught. "She's… she's just letting me do this," he said in awe. "She trusts me."

Scully smiled, her heart swelling at the sight. "She does," she said simply. "She knows she's safe with you, Mulder."

He gently cupped water in his hand, letting it trickle over Sabrina's head. The baby blinked at him, her tiny face relaxing into what almost looked like a smile. Mulder's grin widened.

By the time Sabrina was dried and dressed, Mulder was hooked. That evening, he shyly asked if he could bathe all three girls, while Scully took over the task of dressing them.

As he finished with Joanna, his gaze lingered on her left hip. "Hey, they all have this same birthmark," he said, his tone curious. "Right here."

Scully looked up from the changing table, her brow furrowing slightly. "I noticed," she admitted after a moment. "I have the same one."

Mulder's eyebrows shot up. "Really?"

Without a word, Scully lifted her shirt just enough to reveal the faint birthmark on her own left hip.

Mulder leaned closer, smirking. "And the one over here?" he asked, pointing to a spot on Joanna's chest that would correspond to the side of Scully's right breast.

Scully rolled her eyes but couldn't hide her small smile. "That one too."

Mulder tilted his head, his grin widening. "No visual proof?"

Scully shook her head, her voice calm but teasing. "Just trust me."

Mulder leaned back, folding his arms as he watched her finish with Beatrice before taking Joanna from him. "It's odd, though, isn't it?" he mused. "Even for identical triplets. The exact same birthmark on the exact same spot…"

Scully's hands paused briefly, her expression unreadable. "Odd," she agreed softly, her voice distant.

Mulder didn't push further, sensing her unease. Instead, he reached over and gently squeezed her hand, grounding them both in the moment.