Let's throw some cliche' into this~
Rose laughed in amusement and part celebration when he succeeded, and instinctively hugged him, almost pouncing on him...and getting her foot caught in a twisted sheet, fell, pulling him down with her.
She laughed still, putting a hand over her head while the other stayed around him.
"You would think we would try to stay off the bed considering everythin'!" A flirtatious grin was aim toward the Doctor, making the situation a bit more light-hearted.