Slowly, moving in and out as I established a rhythm I found that I was actually in farther. I could see my shaft as it went in and out of Linda's ass and I could feel my balls swing forward to strike her clit. Viv wasn't idle either, she turned around and was still sucking on Linda's pussy as I was taking measured strokes in and out of her ass. I started feeling that familiar tightness in my balls as I was about to cum. Viv noticed it also and began to suck harder on Linda's pussy and clit. I tightened up and lunged forward against Linda, burying my dick as far as possible in her bottom. I could feel myself pumping cum into her tight ass as she came from Viv's ministration. Resting there I could only wonder about how great it felt. Then I began to feel something else. Viv was busy licking and sucking the juices that escaped from Linda's pussy and ass from my balls.