The Permanent Booru

Score: 0.02

+ anthropomorphism	4530491
+ artist:krazyelf	282
+ blush	1364843
+ booru:e621	1475840
+ booru:rule34.xxx	161594
+ breasts	2334906
+ character:knuckles the echidna	7807
+ character:sonic the hedgehog	30989
+ cinema	87
+ creator:krazyelf	1905
+ crossgender	66052
+ cuddling	21771
+ dialogue	577432
+ duo	2036716
+ fem sonic	17
+ female sonic	49
+ femsonic	39
+ gender bender	68162
+ gender:female	3643454
+ gender:male	3524676
+ genderswap	16638
+ grope	19627
+ hedgehog	19390
+ knuckles	318
+ knuxonic	41
+ language:english	435542
+ male/female	904823
+ medium:3:4 aspect ratio	6613
+ medium:english text	668830
+ medium:high resolution	3019418
+ medium:speech bubble	203621
+ medium:text	1037988
+ meta:3:4	95638
+ meta:dialogue	445216
+ movie theater	1022
+ movie_theater	142
+ nipples	1637035
+ page:1	31443
+ public	72359
+ rating:explicit	3750939
+ series:sonic the hedgehog	169067
+ sonic	7260
+ sonikku	8
+ source:inkbunny.net	23325
+ species:echidna	9907
+ straight	292608
+ theater	526
+ title:on the back seat	2
+ transformation	142433
+ video games	917086