Doctor Who? (10/Donna, PG-13)

[mahmfic]

Title: Doctor Who?
Author: megans_writing
Beta: czarina_kitty
Pairing(s): 10/Donna
Rating: PG-13
Word Count: 100
Warnings: Spoilers for 'Journey's End' and 'End of Time'. Masturbation.
Notes: Originally written for day one at mmom. It also counts as 'time traveller's prompt: impulse' at doctor_donna.
Disclaimer: I do not own Doctor Who.
Summary: 'It gets better every time', Donna thinks to herself.