Just read parts 1, 2, 3 and really approve of Ianto as shy passionate and somewhat willing. Modesty is rather arousing in him, a purely personal personal opinion but it is also a bit of a relief to have the two characters develop without some negative bitter agenda. A great antidote to all the heavy stuff being posted at the moment. Have you seen s2ep12 yet?? You'll be writing for along time after.
Genius plot device of yours, that Alien absinth; "what is it?" "I dunno, it's ...blue""lets drink it".
I wish I had your knack for furthering events by using dialogue, good style you have there. Looking fwd to you rytin moar soonn pleez.