TVR/Andrew2/Bath/Bed/Incest/Surprise/Tell/Saturday/Spying/Susan/Anatomy/Ken/Swap
Reluctantly, you pull out of Janet and walk round behind Susan. Janet gives you a nervous smile as Ken gets behind her, but then you concentrate on Susan. Her bum is bigger than your sister's and you like the way it wobbles when you hold her cheeks. She wiggles it about and hitches herself up a bit over the couch arm so you get a good view of her pink cunny and the brown wrinkled entrance to her bottom.
You spread your feet apart and slowly push forward, holding your cock so it slides into Susan's hot wet cunny. You push all the way in until your balls are squashed against her and hold it there, enjoying the sensation as she uses her internal muscles to squeeze you.
With all that's going on, and you can feel how hard Ken is banging into Janet, it's not long before your balls clench and you start pumping spunk deep inside her. Your legs are a bit wobbly after that, so you collapse into the armchair to recover.