Please continue the narrative story based on the exact _BACKGROUND_ and _STORY LINE_ specified below. DO NOT FINISH THE STORY UNLESS YOU SEE THE INSTRUCTION "_THE END_"

_BACKGROUND_

CHARACTERS
char:NAME_1(50y/o,female,married,eth:white,job:homemaker,body(curvy,fit,"big breasts","big ass"))
char:NAME_2(26y/o,male,single,eth:black,,job:"personal trainer")
char:NAME_3(50y/o,male,married,eth:white,job:executive)
LOCATIONS
loc:NAME_1 and NAME_3's Home(suburbs,"large home",nice,private)
loc:NAME_1's Garage Gym(fitness equipment,weights,exercise mats)
PARAMS
tense:present
pov:third person omniscient
narrative-tone:passionate
genre:erotic(sexually explicit)
FACTS
fact:NAME_1 and NAME_3 are married
fact:NAME_2 is NAME_1's personal trainer
fact:NAME_2 gives NAME_1 private training sessions in her home gym
fact:NAME_2 has been training NAME_1 for about a year
fact:NAME_1 is very attractive for a middle aged woman
fact:NAME_1 has a good sense of humor and is easy to talk to
fact:NAME_2 secretly finds NAME_1 sexually attractive
fact:NAME_3 has a fantasy of NAME_1 being with another man
fact:NAME_3 and NAME_1 have fantasized about NAME_1 being with another man
fact:NAME_1 is nervous about her fantasies of being with another man
fact:During sex NAME_3 once fantasized about her being seduced by NAME_2 during a workout and she was very turned on, but also very conflicted

_STORY LINE_

PREVIOUSLY
loc:NAME_1's Garage Gym
NAME_1 is in the gym waiting for NAME_2 to arrive for her workout
NAME_3 is home but at the other end of the house
NAME_1 is wearing tight yoga pants and a workout tank top with a sports bra underneath
NAME_1's hair is tied up in a loose bun on her head

CONTINUED
loc:NAME_1's Garage Gym
NAME_2 arrives

[STOP HERE]