Usually 18 year old teenagers do footjob differently. With special passion

Usually 18 year old teenagers do footjob differently. With special passion. Their feet sweat a little and do not need lubrication at all. I also noticed a sour smell from their feet. Maybe it is connected with the release of hormones. Anyway, I like to do foot fetish with teenagers because for them it is a new experience and it is not painful for them like anal sex.