It was so cute that this was all it took to make my little brother shoot his load over Skype. Usually it bugged me when boys obsessed over my tits, but it was different with my brother for some reason. I would do this for him all day.
tags: big sis, boob gif, cleavage, big tits, busty, sister, incest, fantasy
original: https://bustysister.tumblr.com/post/46202632727