7:59 video
So you're just teasing the viewer for being a lazy gym rat but never working out. He spends the day staring at Liv as she stretches and works out, drooling over her sweaty armpits, wishing he could smell, lick, tickle. Out of all her body parts, toned abs, legs, etc, it's her sweaty armpits that get his d!kk hard. He's nasty. Then place your index finger in the middle of her pit and hold it there. Have him image being able to place his tongue right here. Don't tickle just yet. Make him wait for a few seconds. Then tell him to imagine licking the sweat from her salty pits (little tiny scratches on her pit, pretending your finger is his tongue) He only gets one armpit
Then her foot. Oh but his obsession doesn't stop at her pits. He's always wondered what those sweaty feet looked like. How they smell freshly out of her shoes and socks. You give him a little taste by pulling her sock to the toes to expose her sole. Make him wait for the toes. Then sensually scratch them as Liv giggles and flexes her toes. The feet are more ticklish after a hard workout. Eventually you remove the sock to expose the toes. Then make her toes curl and wiggle as you scratch and tickle, teasing the viewer for wanting to smell and worship these sweaty stinky feet. Nasty gym perv.