The bus always took the same route and always went trough the old part of town, especially the one that looked like a crappy ruined ghost town.
Usually the girls didn't minded this but today Diane remembered about an old sex shop that was closed but it's storage wasn't emptied and so proposed to the rest to get in and get some free toys for later when they planned on a sleep over party with their boyfriends, they all agreed to it and thus stopped at the second bus station in the old part of town, from where they found the shop quick, it was two blocks from the main road down a short dead end aleeway
But as soon as they got in the shop starage something clicked in their heads and they became extremely horny and lustful for eachother.