Because everyone who loves Ianto's snarkiness (and anyone who has a serious kink for hands *drools*) should really not miss these...
The Tango Phalanges http://skellerbvvt.livejournal.com/6150.html#cutid1 and its sequel
Kiss and Tell http://skellerbvvt.livejournal.com/20097.html by the awesome, amazing skellerbvvt, master of the art of snark.
If you haven't read them yet, what are you waiting for? Jack is no match for Ianto - in anything. Hilarious, witty, sexy and just downright brilliant, I can't recommend these two highly enough!