Our strange s**
When my boyfriend and I are alone at home, he just puts on these tight elastic blue boxers. He then turns his back to me and poops in his boxers. I can see the slowly increasing bulge at the back of his underwear. It turns me on greatly and I lightly slap his bum. This gives him an erection. Then I only pull down the front of his boxers and he inserts himself into me, the p*** still at the back of his boxers.
This is our favorite form of s**.