A Good Climax, Ruined - Sissy stories, #6

Mistress Lana has a new arrow to add to her BDSM quiver.  She decided to see how long Mark could hold out before climaxing. One night after the sports game, Mistress Lana asks Mark to lick her feet clean and prepare himself for the night's activities.  First, it is his duty to purchase tickets for a Valentine's dinner and show.  Once he finishes, Mark has to paint Mistress Lana's toes and fingernails a bright shade of red.
Once he completes his work, she demonstrates the concept of a ruined orgasm before taking him with her new toy. Valentine's Day rolls around with Lana and Mark having a wonderful time on their date.  Afterwards, Lana wants to go back to the spot where they first made love in the back of Mark's car under the moonlight. This time, she brought along a toy and desires some role reversal, with Mark getting pegged in the backseat.
On the way home, she makes a deal with Mark.  If he can hold out, she will let him copulate inside her.  If he ruins another orgasm, well Mark is on the bottom once again. Can Mark hold out as Lana gives new meaning to the game red light stop, green light go in this sexy story?