[Well, it's equal parts training and stubbornness, honestly. She's cold, but he's colder.]

Through the force of sheer will.

[She sets her mug down on the floor and shifts over to snuggle up to Tony, and pull the blanket around her.]

Once your finished with your cup, I'll see what I can do.

[A pause.]

We could disrobe, body heat for warmth is most effective when nude and under the blanket.

[Reaching down she picks up her mug and takes a drink, before meeting his eyes. And there it is, that smile again. Making it difficult to tell if she's serious or not.]