As Kati began to move again, so did Eli, matching the rolling of her hips with his own.  His hands rested on the sides of her thighs to hold her steady as he rocked with her, timing his movements to match those of her and Gabriel so they all worked in tandem.  Leaning over her a bit, he let out a soft, but deep moan to give her ears the same pleasure her body was experiencing.  "Mmm...so tight...you feel...so good..."