Jizz

Someone's heart rate monitor was strapped a bit too tight ;)

runwild

Wore my Fitbit heart rate monitor during sex. Beautiful. [OC]

dataisbeautiful

Bought a heart rate monitor! Excited to work out!

GoneWildPlus

Fitbit Heart Rate Monitor

cocaine

Always Monitor Your Heart Rate [Machikado Mazoku]

handholding

Always Monitor your Heart Rate [Machikado Mazoku]

handholding

Heart rate monitor

u_yeougui, HelplessHentai, Hentai_Bondage, BrushWheelsHentai, PredicamentHentai, IWantToBeHerHentai, BintersHentaiStash

I’ll leave my Apple Watch on so you can monitor my heart rate while you leave me tied up all day. [F]

BDSMGW