Hi there! I would like to request help for seeking a manga that's pretty old, maybe about 8 years ago?

I think it's about a tall virgin lady who married her husband (office worker?) and had shy sexy. Eventually she got really addicted to it and him. He sometimes get tired but in awe of how she reacts.

I think there was one chapter she wanted to figure out how to masturbate and learn how to pleasure herself without her husband.

I can't remember but I think she got pregnant later but it didn't complete when I read it.

Thank you.