The Permanent Booru

Score: 0.004

+ abdominal bulge	99611
+ aliasing	4786
+ anal	580665
+ anal masturbation	25263
+ anal penetration	453768
+ anthropomorphism	4523957
+ blush	1362977
+ character:knuckles the echidna	7799
+ creator:kiniax	87
+ dildo	112480
+ gender:male	3520082
+ half-closed eyes	255229
+ large penetration	11652
+ masturbation	226159
+ medium:monochrome	374751
+ nude	1718732
+ open mouth	1258389
+ penis	2156839
+ series:sonic the hedgehog	168833
+ sex toy	188800
+ solo	3106798
+ species:echidna	9897
+ species:mammal	4512309
+ species:monotreme	10804
+ year:2025	1127