First shift

Jack arrives for his first shift and Jill tells him to stay behind the desk while she goes to the toilet.
No sooner had she gone into the back of the shop two young women enter, they both looked around 18, if they were even that old. One was of medium build, her friend small and thin.
Jack asked them for ID and they were 18, old enough to enter. He also checked their address.
Jack pretended to read a news paper he found behind the desk while watching both of the girls.
He saw them both enter the area where the toys were on display. They both kept looking in his direction and when they think he is not looking they whisper in each others ears and point out differant toys.
After a few minutes they started getting louder and louder and stopped looking at Jack all together.
That was when Jill returned she took one look at the situation and walked over to the girls and asked if she could help.
Jack had been waiting to do the same thing but was not sure if they wanted his help. The girls look relieved dealing with another woman.
The larger girl said that her and girlfriend wanted to buy a toy they could use on each other she wanted something long and thick while her friend was scared of the big toys and was thinking of forgetting the whole idea.
Jill knew just what to do she showed them the colection of strap on toys. She even showed them they could buy a large dildo with the belt and a smaller dildo as a spare one. Then she opened the pack and showed the girls how to change the dildo they both could take turns using the same strap but differant sized dildoes.
Both girls were wearing skirts and the larger girl removed her underwear and put the strap-on on in the middle of the store. She just stood there holding her skirt up and stroking the 10 inch dildo in the middle of the store. Her friend just stood there and shook her head and held up a 6 inch dildo and told this was the only toy she going to use on her. To prove a point she then lifted up her skirt moved her underwear to one side and slowly inserted the dildo in her pussy. Both girls then came to the desk to pay for their toys.
Jill handed the empty packets to Jack who used the bar codes to find the price of the toys.
While the smaller woman was getting ready to pay her friend grabbed her around the middle and placed the dildo she was wearing just under her friends and pretended to fuck her. Each time she thrust forward the dildo hit the front of her friends skirt.
The smaller woman smiled at that point and turned her head. Next thing Jack can see both women are kissing and the larger woman who is still behind her friend has a good firm grip of her friends tits.
Jack knows they don't live together. Will he offer to let them use his place?