To: I am a mother with a seven year old daughter.
Me: You crossed a boundary which you can’t go back from. Your daughter will expect you to touch her again and if you want her to continue loving you, you will have to carry on, because she will want more, whether you like it or not and you need her to “not tell on you”, because if she does, well, you know what happens then.
Best to make it your secret and not to share with anyone, ever and hope for the best and carry on, after all you now want it as much as she does and you can teach her to make you happy too.