The Doctor sat, for a long while, thinking, trying to figure out how to surprise Rose. It was a bit difficult to think when his mind was fuddled with the toxicity of booze.
And then, finally, it came to him.
He broke into a grin, and got up, practically running toward her room. He nearly tripped and fell three times, but finally made it.
Once he'd slipped inside, he started to undress, in a hurry, as he already felt hot, as it was. His clothes fell into a neat pile on top of hers, and then he was climbing onto the bed, moving until his back hit the cool sheets.
Now all he had to do was wait for her. Once she saw him, he knew she wouldn't be able to say no.