You were one of his nannies, and even after he showed himself, you stayed.
After a long time together, you two had a lot of fun, if you understand me... And after lots of fun...he got you pregnant
When you told him you were pregnant, he got really confused. You see, he's been living inside the walls of that mannor since he was 8 years old, he doesn't really know how it works, so, pregnancy was another thing you had to explain to him
He seemed amused with the idea that you were carrying his baby inside him, he was curious and even a bit...scared by that fact, scared that something would happen to you. He liked watching you from afar, watch you belly grow was something incredible to him, even though his face was hidden behind that porcelain mask and didn't really talked a lot, you knew he was amused and happy
You were now 7 months pregnant with his baby