The Permanent Booru

Score: 0.004

+ anthropomorphism	4525492
+ big breasts	1081648
+ breast play	43424
+ breasts	2332656
+ censored genitalia	8679
+ censored penis	6668
+ character:knuckles the echidna	7799
+ character:rouge the bat	35690
+ character:shadow the hedgehog	11546
+ creator:zk (artist)	136
+ erection	1142544
+ fellatio	238244
+ from behind position	197624
+ gender:female	3640092
+ gender:male	3521169
+ genitals	2703300
+ group	576534
+ group sex	147372
+ licking	195069
+ male/female	903926
+ meta:1:1	193998
+ meta:censored	96535
+ meta:hi res	2891707
+ motion lines	94030
+ oral	420155
+ penetration	1137247
+ penile	620988
+ penis	2157495
+ penis lick	47151
+ rating:explicit	3747212
+ series:sega	109757
+ series:sonic the hedgehog	168888
+ sex	1408036
+ species:bat	54828
+ species:echidna	9897
+ species:eulipotyphlan	63182
+ species:hedgehog	63596
+ species:mammal	4513596
+ species:monotreme	10805
+ titfuck	42182
+ tongue	1150523
+ tongue out	729258
+ trio	163983