Anal on my boyfriend?!?

Quila • Hey my name is Quila. I love my man. I enjoy my family. I have a decent steady non-stressful job and just living life one day at a time.
So my boyfriend said he wanted me to try to use a toy and perform anal sex on him and he said he wanted me to try eating out his ass. Has anybody else done this? If so how do I get myself comfortable enough to do that?