Rule 34 - Abs Anal Anal Sex Anthro Ass Assassinfenrir Balls Belt Black Body Black Fur Blue Body Blue Fur Blush Bodily Fluids Clothed Clothing Clothing Around One Leg Colored Cutaway Digital Media (artwork) Dripping Duo From Behind Position Fur Generation 1 Pokemon Generation 4 Pokemon Genital Fluids Genitals Grabbing From Behind Grey Body Hi Res Humanoid Genitalia Internal Knot Knotting Looking Back Lucario Machoke Male Male/male Motion Lines Mounting Muscular Muscular Male Nintendo Nipples Open Mouth Partially Clothed Pecs Penetration Penis Pokemon Pokemon (species) Precum Precum Drip Red Eyes Red Penis Sex Shaded Shaking Signature Simple Background Spikes Spikes (anatomy) Sweat Tail Tongue Trembling Underwear Underwear Around One Leg Underwear Down Yelling Yellow Body Yellow Fur