A continuation of my post op care
In my first story my wife and sister in law gave me a shower because I could not use my arm, and my sil watched my wife jerk me off. After that first shower the rest got better, it was usually just my wife and me. My wife would now spend more time and attention to my cock and balls as she helped me undress and shower. She usually kept one hand washing my cock while she used the the other to wash the rest.
My SIL called me one morning and asked how I was doing and if I needed anything, she said she was on her way home from work and would stop by and help with a shower or anything else I needed. She knew I was home alone, so I told her I could use a shower, even though I had just gotten one the night before, including a fantastic blow job from my wife. Just the thought of standing nude in front of my SIL while she was dressed started to get me hard. My SIL came over and we talked for a few minutes until she led me to the bathroom, she began to undress me until I was standing in my underwear with an obvious bulge. (I am not really this helpless, but I am enjoying the attention while I can). As she began to lower my underwear she noticed me looking down her shirt and pointed out I must like what I see, I nodded yes and she asked if I would like her to take off her shirt. Of course I said yes, she was wearing a plain white bra, but her nipples were plain to see sticking out. She then asked about her pants, I told her why risk getting them wet while she washed me. My SIL is a little on the plump side, but has a nice figure with a great round ass, she was wearing a pair of granny panties that seemed to be a size small so they were semitransparent. By this time I was hard as a rock staring at her, I stepped into the shower and she began to wash me, just like my wife's showers, one hand washing my cock and balls and the other kind of washing the rest. I really enjoyed her stroking and rubbing my soapy balls, I exploded in minutes. My SIL rinsed me off and helped me out of the shower, as she turned to get a towel I was looking at her plump round ass and with my good arm I reached out and hooked my finger in her panties. I used my finger to pull her panties down, gliding it down her ass crack until I got to her wet pussy lips, I was hoping to repay the favor, but she closed her thighs on my hand and told me that wasn't a good idea.
Unfortunately I am now able to take care of myself and have not had any further situations with my SIL, but my left shoulder does seem to be bothering me a little.