Can anyone find out I logged into their instagram?

[Brandon]

Alright so me and my cousin know each others instagram passwords. She saw me logging into my account and putting in my password and I have seen her logging into her account. So since she knows my password she uploaded a pic of me sleeping and this has happened a bunch of times. So I logged into hers just for the fun of it (well because she cussed on it and I was afraid her mom would find it, I don't want her,to get introuble) Will she be able to know I logged into her account? I didn't do anything BAD, just log in, look at her followers,photos,at the one she had cussed, then logged out.

[J]

No