A father in awe of how much bigger their son has grown up to be. father and son, male/male, huge show-off white wolf, bigger son, smaller father, very tall, chubby, white fur, big musclegut, muscular, massive, mature male, old, red boxer briefs, small wolf with dog collar and gray fur worshiping partner, purple briefs, very short, big fat, musclechub, sizeplay, lustful, size comparison, muscle worship, extreme size difference, blue eyes, living room couch, night, exposed penis, hard penis, nsfw, sex, penetration, gay, romantic, hot, sweaty, musk, blushing, happy, sexual, horny, intercourse, penetration, naked, sex, by mystikfox61, by darkgem, by glitter trap boy, by bebebebebe, by null-ghost, by haps

(nsfw:1.5),,verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair)), bad hands, mutilated hands, mutated hands, poorly drawn hands, extra fingers, missing fingers, too many fingers, missing penis, messed up penis