My sister just keeps turning me on more and more

So I recently made a post asking for tips to seduce my sister and I got a lot of messages and even though the past week hasn't been that eventful, I could feel myself wanting her more and more

A little bit of what I tried to do with her:

1. Press my face against her boobs, felt heavenly even if it wasn't all the way in

2. watch her get out of the shower with just a towel on, that collarbone I could kiss all day

3. Grab her waist whole pretending to look for my charger on the bed, her thick waist made me hide my hard on

4. Ask her to help me put some eye drops in by putting the bottle between her boobs

I wanna take it further and once again would appreciate tips and also would love some input from women because she just got on her period 2 days ago I think and I wanna use that opportunity somehow

thank you!