The 5 minutes were torture for Tom, as the girls kept horsing around and giggling, and then lazing about while they waited. All the while his hands kept him on edge as he watched them.
Worse, his hands decided that he should also develop a fetish for breasts, since the girls had such pretty ones that were always on display. So his hands gave him an extra jolt of reinforcing pleasure whenever his eyes focused on a pair of their breasts.
After suffering for a long time Tom asked the girls if his 5 minutes were up...