Blackmailing servant part 1

This happened in the year 2007 when I was 20 in Kolkata.
We had an old maid her name was Rohini she had served us for nearly 20 years and in June 2007 she passed away owing to a heart attack.
We searched for a new maid and finally got one her name was Sonali. She was 19 years old and didn’t look anything like a maid. She had a whitish complexion perfectly shaped breasts and a curvy figure she was more like a model rather than a maid. My parents hired her she would come every day early in the morning at around 8 and leave to work at another house at 1 and return in the evening to cook at 7. While working she would wear a long flowing skirt and a loose top that would show her sexy cleavage whenever she bent down I would always try to get a peek here and there whenever I could. She would notice this and hide her cleavage, every night I would fantasize and masturbate thinking about her. I got my chance after 3 months when my parents had to go out of india to attend their cousins wedding I could not go as in the previous month I had an accident and was advised not to travel long distances plus dad needed someone to see to his business while he was gone, I had 45days in which i had to make her mine and i had decided that i would certainly sleep with her atleast twice in these 45 days. To my delight my parents asked Sonali to stay with me and sleep in the guest room for these 45 days so that she can look after me because i had not recovered fully. She hesitantly agreed, seeing her hesitant agreement i understood that the only way i could bed her would be by either blackmailing her or raping her i didn’t want to rape her as that would pose serious problems later on. So the day my parents left i went to drop them off to the airport on my way back i bought a pack of condoms keeping them ready at all times.
Now i required a reason to blackmail her but she was too good a maid i started leaving money out on purpose but she would not take it but would return them to me. 10 days passed and nothing happened i was getting restless and close to rape her, but i controlled my emotions and did’nt let it waiver off.