The Permanent Booru

Score: 0.221

+ alternate universe	4085
+ anus	755709
+ balls	1416049
+ big breasts	1082199
+ blush	1364062
+ booru:e621	1475840
+ breasts	2333668
+ captainjingo	290
+ character:undyne	7013
+ comic	169251
+ creator:captainjingo	491
+ dialogue	576969
+ duo	2035497
+ english text	202562
+ eyewear	407737
+ fingering	67127
+ fingering another	7727
+ fingering partner	10163
+ fish	40026
+ gender:female	3641585
+ gender:male	3522693
+ genitalia	2327568
+ genitals	2704618
+ glasses	296556
+ interspecies	413842
+ kiss	74972
+ language:english	435542
+ large breasts	825552
+ lesbian with male	253
+ male on female	272417
+ male penetrating	570137
+ male/female	904315
+ mammal	1304330
+ marine	58538
+ medium:absurd resolution	995354
+ medium:comic	313263
+ medium:english text	668829
+ medium:high resolution	3019403
+ medium:speech bubble	203620
+ medium:text	1037987
+ medium:video game	218021
+ meta:dialogue	445198
+ meta:speech bubble	37062
+ monster	365113
+ nipples	1636119
+ penetration	1137692
+ penis	2158398
+ pussy	1037358
+ rating:explicit	3748854
+ series:underswap	270
+ series:undertale	69056
+ series:undertale fanfiction	201
+ sex	1408580
+ species:fish	109665
+ species:human	543656
+ species:mammal	4515453
+ species:marine	179687
+ species:monster	102682
+ species:primate	261557
+ speech bubble	286825
+ straight	292598
+ testicles	443300
+ text	1223472
+ underswap	143
+ vagina	1038040
+ vaginal	536934
+ vaginal penetration	441928
+ video games	917085