Eventually i did just walk around the house with just the shorts on. But didn't walk much. Just stay on the sofa and go back to the room and sleep.
Last week, when i went to their house, the sis was not wearing a bra, just the t-shirt. The nipple is very obvious not sure if she is only or hers is that big. Unsure why she came out without her bra on, usually she will wear if i am there. She still walk towards me quite afew times for me to see. Not sure what is it up too. Shall see if she will do it again