Fiona MacTaggart, MP for Slough, has pledged to donate £1 to Comic Relief for every retweet she receives for the tweet posted below before 9 pm.
At the time of writing, the tweet has received thousands of retweets.
I will give £1.00 to Comic relief for every retweet of this message before 9pm
A politician's "spur of the moment" charity idea left her more than £14,000 down after promising £1 for every retweet she got on Twitter.
This year's Comic Relief has raised a record £75.1 million so far, beating 2011's total of £74.3 million.