After a hard day at Sister Mary Monica Lewensky's Junior College, Nina a commuter, travels to her family's home in the country.
Her bottom has been tingling all day since she deliberately forgot wear her panty's.  She can't help but stop and play at her father's desk before changes out of her school uniform.
Most of the day she's been able to sample her sweet nectar with her finger under her desk without anyone noticing.  And as you can see Nina has already discovered the stimulation of penetrating her young tight ass with her fingers.
She's interrupted by a phone call from a boyfriend.   She teases with him about how she's boiling inside with sexual desire and even let's him listen to the sounds of her wetness as she touches herself.