The Permanent Booru

Score: 0.006

+ anatomically correct	42176
+ anatomically correct genitalia	26234
+ anatomically correct penis	12277
+ animal genitalia	625081
+ animal penis	438257
+ anthropomorphism	4522075
+ blush	1360914
+ bodily fluids	1961473
+ character:knuckles the echidna	7793
+ clenched teeth	67843
+ clothing	2724479
+ creator:meowwabae	115
+ echidna	1289
+ echidna penis	71
+ erection	1141217
+ gender:male	3516577
+ genitals	2700680
+ gloves	297725
+ hair	2361255
+ half-closed eyes	254976
+ hand on penis	88844
+ handwear	253376
+ mammal	1303334
+ masturbation	225965
+ medium:simple background	1620712
+ meta:1:1	193671
+ meta:absurd res	1077026
+ meta:digital media (artwork)	907387
+ meta:english text	590755
+ meta:hi res	2888092
+ meta:meme	39646
+ monotreme	3397
+ narrowed eyes	371698
+ penile	620333
+ penile masturbation	70862
+ penis	2154460
+ question	5787
+ rating:explicit	3741558
+ series:neuron activation	159
+ series:sega	109627
+ series:sonic the hedgehog	168387
+ sitting	433781
+ solo	3104775
+ species:echidna	9892
+ species:mammal	4510674
+ species:monotreme	10798
+ sweat	460446
+ sweatdrop	97106
+ teeth	816129
+ text	1220985