Put some aphrodisiac in her food

Of course, a good aphrodisiac would make this incredibly easy. You went to your mansions kitchen and informed your staff you wanted to make a cake for your daughter by yourself. They understood the value of a self made cake of a mother for her daughter, so they all considered it a noble gesture of you. Ofcourse, when nobody was watching you added the aforementioned aphrodisiac.

When it was finished it looked pretty. It tasted sweet and was full of lust.

Eagerly, you took it up to your daughters room. You chose to enter her room without knocking. It was your house after all, you could go anywhere you wanted.