First post here and need some advice. So I’ve married young, I’m 24 and she’s 22 and I’m happy with the relationship. She has an older sister that is 27 and I’ve always been quite attracted to her, shes admitted that I am handsome and good looking and well built which makes me think she has some sort of attraction to me also. Anyway when she is over at our house or sometimes when we stay at hers she wears pyjama shirts with only 1 button done and he does yoga quite a lot in her pyjamas so I have seen her her tits quite a lot. (One time I needed a shot of a spare iPhone so she gave me hers for a couple days which was still loaded with all her photos and with having an sexual attraction to her I had to go through her camera roll and saw so many photos off her nude, she knew all her photos were still on that phone so I wonder if she knew I was gonna look through her photos and left them for me to see or she didn’t expect me to look) Anyway she doesn’t try to hide them or anything when she stretches and they’ve popped out the shirt, same in our house only 1 button done and see her tits quite a lot, she’s caught me staring at her tits a number of times but doesn’t mention anything. We have an open plan kitchen and loving room and while shes been sitting on our couch I would be in her side view and sometimes I take my cock out and start jerking ( I have videos ) but luckily enough she doesn’t notice. I have quite a big cock which quite clearly shows a bulge in shorts or joggers, we are fairly close as well with her being my wife’s sister and we’ve decided to start going cycling together so I’ve just bought a pair of white tight cycling shorts which will show my bulge a lot and hopefully she will notice. I need advice on how to get closer to her or ways I could expose more of myself to her thanks.