"In a drawer somewhere?" Jack suggested, playing along with that. "Teeny tiny children?" Which gave him the mental image of a whole bunch of swarming, tiny redheads. That could be rather frightening!
"Mmm, Uncle does sound like more fun. Then you can return them afterwards." Or when they got particularly messy. Jack liked kids loads but he didn't see himself have any in the near future. Of course, with him fancying blokes and all, well, it probably wouldn't be in the far future either, unless he adopted! "Plus you can spoil them more that way."