Rule34.GG

Regular arm warmers
armwear
belt
blue eyes
blue hair
bondage
bound
breasts
cephalopod
clothing
coleoid
duo
ear fins
featureless breasts
female
fin
genitals
hair
hands above head
hands tied
hi res
humanoid
jewelry
looking at another
looking at partner
marine
merfolk
mollusk
octopodiform
octopus
offscreen character
open mouth
penetration
purple body
purple scales
pussy
restrained
restrained by tentacles
rock
sandentwins
scales
split form
sucker (anatomy)
tattoo
tentacle
tentacle in pussy
tentacle penetration
underwater
vaginal penetration
water