Twitter API: Allow accept request to follow authenticated user

I have a protected twitter account due to the age restricted content being displayed. Is there a way to use the twitter API to accept or reject the requests to follow this account. I know that I can view these requests using

http://api.twitter.com/version/friendships/incoming.json

but which request will accept a request. I was looking at the

http://api.twitter.com/version/friendships/create.json

request but this seams to follow a user rather than accept the request for them to follow me.