whats going on with my sis

hi all

i would like to share my story with my sister and know your opinion.

im M32 shes 29 married.

we were always close to each other and talked freely about our sex life etc.

but im worried if she started giving me hints.

she always invite me to hang out and sleep at her house.

she always wear tiny shorts in the house and bends over 90 degrees in front of me.

one time her short was so tiny in the house and her butt was almost out that even her husband told her to go and wear something else.

we always changed clothes in front of each other so watching her in underwear is not a big deal for me but last time i was there she was like that for 20 minutes talking with my mom with her butt facing me and when her husband returned she changed position like she wouldnt want him to watch her sitting like that.

an other time we were talking about sex and she told me that they like public sex at the beach but also told me the location they visit.

the weird part is that i found twice stuff of me in her personal drawer with her underwear.

the first time it was my boxer but i thought it got mixed with her and got there but after i asked her if she has found it next time i found it at the drawer she keep her swimwear.

after some time and after she gave me my boxers back i found in the same drawer my belt i was missing.

im worried what is going on with her.

is it all in my Mind and she is Just feeling safe around me?

or my sis has incest fantasies about me?

i would like to know what you think.

thanks and sorry for the long message.