prompted by mel-loves-all on tumblr: Sherlock and Molly are dating and he finds it incredibly sexy that she loves to wear his shirts. Especially a particular purple one.
The first time it happens, it takes him by surprise. He comes home from a case that took him out of London for a couple of days. Upon entering his bedroom, he finds Molly curled up atop the duvet wearing his aubergine button up as a nightie. Sherlock's breath hitches at the sight of her. He counts the number of breaths she takes in her sleep while cataloging the faint murmuring of his name from her lips. She's so beautiful, sexy, he thinks. Carefully, he slips the duvet out from under her and covers her up before slipping into bed beside her. He smiles to himself when she inches her way over to lay her head on his chest, over his heart.
The second time, she's running late for work. Molly had forgotten to do laundry the night before and was fresh out of acceptable blouses, so she rummaged through the drawer in her dresser where Sherlock keeps his extra clothing and slips on his blue button up.
Greg, John and Sherlock are waiting for her in the morgue as she rushes in, completely flustered. His eyes lock on hers and then move down to acknowledge her choice of clothing. John and Greg, being witness to it all, noticed that the shirt was at least two sizes too big on her. Needless to say, they put two and two together. Sherlock cleared his throat when he finally got a hold of himself.
"Ah, Molly, nice of you to join us," he smirked.
The third time, she's curled up in his chair, reading a book by the fire. She's wearing jeans and his black button up. He walked into the flat with takeaway from Angelo's, setting it on the coffee table.
"Hello, Molly," he greeted her with a smile.
Looking up from her book, something about Jack the Ripper, she replied, "Hey you." She stood and made her way over to him. "You brought food, thank goodness."
"Of course I did," Sherlock stated. "Did you think I was going to let you starve?"
"Well, no," Molly responded. "At least I hope not." Her small laugh caused his heart to jump in the best way.
"I've noticed," he began with a smirk, "that you have an affinity for wearing my shirts." He kissed her as he guided her toward the sofa.
"Is that a problem?" she murmured between kisses.
"Absolutely not," he breathed out. "But I. Do. Prefer." Each word was punctuated with a kiss as he moved his lips down toward her neck. "The aubergine." She stopped him then, standing up and slinking into his room. Moments later, she appeared before him in his aubergine shirt.
"Better?" she asked, standing in front of the sofa where he sat. He said nothing but gently pulled her down to him by her hips, their lips meeting again finally. They lost themselves amongst the endless snogging and gentle caresses. She was pretty sure she heard him murmur the words so sexy against her skin. This was the night Molly realized just how much her habit of wearing his shirts drove him wild.