This mod is intended for femme and flat chests, but the flat version should work on masculine bodies too. There may be seams, as this was seamed to eBody Reborn. Unfortunately there isn't much I can do about those other than entirely hand painting the mod on a masculine body, but they shouldn't be too noticeable regardless.
Instructions are included in notecard.
Parts list:
HEADS:
Cerberus Eclipse - https://marketplace.secondlife.com/p/C-TLO-Eclipse-Bento-Canine-Head/26356509 / https://marketplace.secondlife.com/p/C-TLO-Lunar-Eclipse-4-Eyed-Bento-Canine-Head/27145343
FH Vulpine - https://marketplace.secondlife.com/p/FH-Vulpine-Head/27192481
August Espen - https://marketplace.secondlife.com/p/AUGUST-Dog-Espen-bento-head/23448470
Marz Silvestris - https://marketplace.secondlife.com/p/MARZ-Silvestris-Feline-Bento-Head/25778576
EARS:
EV - Wolp ears - https://marketplace.secondlife.com/p/EV-Wolp-ears/27464397
EV - Crux ears - https://marketplace.secondlife.com/p/EV-Crux-ears/27209939
Raptorjenny - Kitty ears - Available at Abnormality Sugar Rush 8/7 https://marketplace.secondlife.com/en-US/stores/249373
TAILS:
EV - Wolp tail - https://marketplace.secondlife.com/p/EV-Wolp-tail/27464396
EV - Crux tail - https://marketplace.secondlife.com/p/EV-Curled-crux-tail/27209941
EV - Jungle cat tail - https://marketplace.secondlife.com/p/EV-Jungle-Cat-Tail/26932926
Raptorjenny - Kitty tail - Available at Abnormality Sugar Rush 8/7 https://marketplace.secondlife.com/en-US/stores/249373