Rule 34 - 3d (artwork) Against Surface Against Wall Alien Ambiguous Penetration Bed Biceps Cheap-wazoo Closed Eyes Comic Commander Shepard Dialogue Digital Media (artwork) Duo English Text From Front Position Furniture Hand Around Waist Hi Res Holding Arm Human Humanoid Interspecies Kissing Kneeling Krogan Legs Up Lying Male Male/male Mammal Mass Effect Missionary Position Muscular Muscular Male Nipples Not Furry Nude On Back On Bed On Top Open Mouth Pecs Penetration Pinned Sex Size Difference Source Filmmaker Standing Text Urdnot Wrex Video Games Xenophilia