Ariel comes home from shopping dressed in her denim hot pants, hot pink long-sleeped top and stylish, sexy opaque cheerleader pantyhose. On the bed she finds a note- "Lie down, put your arms behind your back, grab your ankles."
She knows her partner will be watching her, though she doesn't know exactly where he is. So she teases him, running her hands over her denim-clad bottom and up and down her hose-clad legs and feet. The moment she assumes the position, both hands grabbing her ankles, he springs out at her... and ties her up like that!
It is an ultra-tight hogtie, Ariel cannot move her hands away from her feet and it keeps her back in a wicked (but very tantalising!) arch. She just starts to enjoy it when he comes back with the gag!