"Sweetie, can you come here a second?" River called, not looking up from the computer in front of her. Though when the Doctor didn't appear in short order, she did glance over to see a giggling Rose poking two disgruntled Doctors in the side.
"I think she means the both of you."
"Oh no," River corrected, "I just need the one. You can keep your Doctor if you like."
"My Doctor?" Rose echoed, looking a bit confused, and River had to remind herself yet again that this was only Rose's first time meeting her.
"Oh, yes," River confirmed, crossing over to them. "This one is your Doctor," she said, grabbing Ten-and-a-Half and shoving him into Rose, "and this one is mine," she concluded, looping her arm through Ten's. "Well," she said, looking the Doctor up and down and finding herself once again unsure whether she was well rid of the bow ties or if she missed them, "he's not quite yet, but he's on his way there."
Rose continued to look confused for a second before breaking into a delightfully mischievous version of her tongue-in-teeth smile. "I guess we're lucky we've got two of them, then," Rose said, slipping her hand into her very pleased looking Doctor's.
River let out an elated laugh. "Very lucky. My parents never did teach me to share. Not their fault, only child, and they were really still just children themselves when I was growing up, but there you are," she said, getting a bit of a thrill out of dropping such a large spoiler without anyone the wiser. "Now come along, sweetie." River began walking back to the computer, dragging the Doctor along with her.
"Hey," objected her Doctor. "Don't we get a say in this?"
River and Rose smiled and answered together. "No."