You wouldn't be able to get it inside her, at least initially, for you're too big and she too small. But you can slide her up against you or you against her at tis time, and it is more than enough.
To prepare her for entry, you can stretch her out with fingers or objects until the holes adjust to having things inside of them and expand themselves for accommodation.
It might be painful or upsetting to her for the first times, but remain consistent and undeterred by this, eventually she will adjust in mind as she will in body.
All this is possible because in the past such things were common occurrences, unlike today when they are forbidden.
As the biggest players in the world say, she can be sexually trained up, conditioned physically and mentally to serve the recreational role of her sex earlier than the time when it becomes her biological purpose.
It is best to start from the youngest ages to get the worst parts over with when whatever damage done is least remembered and most quickly recovered from.
You can have a girl who enjoys sex and is eager to please, for the rest of her life she can enjoy activity with anyone, both sexes and all ages. In a different society from this one she could live a very happy existence indeed.