Mandy, 14 years ago, my wife was in the same boat as you. Now, as long as I get her hot before, her vaginal lubrication will run down, and we can have anal with no further lube.
From a medical standpoint, unless your other is about 8 inches around, you will not be torn. Your rectum can stretch further than your vagina as the pubis bone is not there to limit you.
Lube, patience, and lots of practice, before you know it, he will be balls deep in there
