Rule 34 - 3d (artwork) Alien Ass Back Muscles Balls Big Dom Small Sub Big Penis Brown Body Cheap-wazoo Clothing Commander Shepard Digital Media (artwork) Dominant Duo Erection Genitals Hi Res Human Human On Humanoid Human Penetrated Humanoid Humanoid Penetrating Humanoid Penetrating Human Interspecies Krogan Larger Humanoid Larger Male Male Male/male Mammal Mass Effect Multicolored Body Muscular Muscular Human Muscular Humanoid Muscular Male Nude Oral Oral Penetration Penetration Penis Red Body Sex Size Difference Smaller Human Smaller Male Smaller Penetrated Underwear Urdnot Wrex Yellow Body