The Permanent Booru

Score: 0.276

+ 4 toes	172815
+ age difference	94041
+ all fours	138193
+ animal	108557
+ anthropomorphism	4526470
+ barefoot	196735
+ black nose	323135
+ brother	21830
+ canid	295657
+ canis	158186
+ chapter:2	1694
+ character:alex (harmarist)	617
+ character:will (harmarist)	531
+ clothing	2727060
+ comic	169247
+ creator:harmarist	1284
+ creator:kitaness	276
+ cub	179161
+ doggystyle	80855
+ feet	680579
+ from behind position	197665
+ fur	2312444
+ gender:male	3521857
+ genitalia	2327568
+ genitals	2703896
+ grey body	390271
+ grey fur	301474
+ incest	57182
+ knot	288544
+ language:english	435542
+ male on male	201722
+ male/male	742449
+ mammal	1304285
+ medium:comic	313263
+ medium:english text	668829
+ medium:high resolution	3019392
+ medium:speech bubble	203620
+ medium:text	1037987
+ meta:junk tag	332228
+ meta:url	109081
+ open mouth	1259004
+ page:63	158
+ penis	2157912
+ pool:17444 (e621)	4
+ rating:explicit	3747945
+ series:sheath and knife	269
+ sex	1408281
+ siblings	37489
+ species:canid	1676794
+ species:canine	1729668
+ species:canis	932440
+ species:mammal	4514384
+ species:wolf	449434
+ sweater	56320
+ taken from behind	49183
+ title:sheath and knife (harmarist)	190
+ title:sheath and knife 2 (harmarist)	72
+ toes	483709
+ tongue	1150728
+ topwear	705224
+ will (harmarist)	186
+ wolf	126740
+ young	349179