Steamy Dreams
People in general, but certainly not Mina, because that girl knew exactly what she was doing.
Funnily enough it wasn't even Nadine's toes that were the most effective target. No, this unassuming area squarely on the top of her feet, and even her ankles turned out to be unbearably ticklish when attacked by Mina's nails. So much so that within seconds Nadine shifted gears completely and spread her feet out as much as she could, offering her soles up instead.