"Donna, right outside this Tardis, underneath that water tower out there, is a giant secret facility that Jack is in charge of. Guaranteed there's something he'd like you for." he makes a face at how that comes out sounding. He clears his throat. "So yes, I've been in...contact. Rather constant. A lot of contact."
"Well, I didn't actually mean that like that...just that I promised Ianto and Jack a ride at some point..." he grins at her, "But Donna, you ARE my best mate! And there's the whole ME and you thing, the DNA and the brain and the you...me...you...of COURSE you are." He reaches out to hold her shoulders, looking in her arms. "You'll be fine. Perfectly fine." He grins again. "Molto bene! Absolutely wizard!"