>>6004109Start by slowly and gently rubbing and licking them for a little. Just to see how she would react.
If she gave me a (mostly) positive reaction, without any signs of pain or discomfort, I'd proceed to rub my dick against them for a little bit. Just to give her time to back out if she wants to.
Then gently penetrate and slowly go balls-deep. Just to see if there's any point that starts to hurt her so that I can avoid it.
After that, it's a simple matter of finding a speed that's comfortable for both of us.
Definitely wouldn't cum inside, though, that seems dangerous.