Research and development

You had left the ruler and the spoon on the side of the bed next to Mom, just out of sight, but you reached across to pick them up to show to her.

“So far you’ve been okay with spanking so let's see what else you’d like to try. I’m sure we can add a lot more in time, but for now let's see what works best.” you suggested, letting her eyes linger on the makeshift toys you had prepared.

With her knowing what was coming, you moved back behind her and let your hand run over the curve of her ass, thinking up what you needed to do next.

“Let’s do ten each. And you know what you have to do after each one right?” you questioned, groping one of her cheeks as if warning her.

“Yes…sir” Mom replied, your grip tightening until she said ‘sir’, letting you now let go so you could get into position.

As much as it was Mom’s first time experiencing this sort of pain, it was also your first time administering it. Out of the two, you were more looking forward to using the ruler so you opted to use the spoon first as if working up to it.

You stood behind her and gave her a light swat, the sound exactly as Lucy had predicted, a low thud against her ass.

“...one. Thank you sir” Mom replied, some of the excitement no longer coming through in her voice.

You had been a little soft with that hit so you tried again, noticing her lack of enthusiasm so you tried something harder. The wood came down to hit her and while there was a louder sound, getting Mom to flinch, it still didn’t have the same impact as for what you were hoping.

“Two, thank you sir” Mom repeated, no longer hesitating with her words but it still didn’t sound right to you, no longer getting the same tone out of her voice.

“... I’m changing to the ruler” you stated, wanting to give the spoon at least some more attempts but finding yourself to be too impatient.

You discarded the spoon off onto the floor away from the bed and picked up the ruler, watching the flat edge wobble slightly as it flexed in your hand.

Even with it being more awkward to hold within your grasp, you moved to now hit Mom on her other ass cheek and brought the ruler up to hit her.

*SMACK*

“God, oh fuck!” Mom instinctively whined, raising her voice and burying her face in the covers to silence herself.

Just from the sound alone, you were already much happier with the outcome and watching Mom try to hide herself in the covers with her fists clenched in the sheets and her legs twitching was enough to know she got a lot more out of it too.

The red mark also appeared on her skin and you lightly ran your hand over it as if admiring your handiwork, once again getting more to shiver from the contact.

You didn’t forget however that she had disobeyed your rule, as you lined up for a second swat on her other cheek.

*SMACK*

“Ahh!” Mom squealed, squirming from the pain again.

“You didn’t count” you bluntly reminded, lightly tapping the ruler against your hand so that the sound would remind her what was about to happen next if she didn’t comply.

“Sorry sir!... Three. Thank you sir!” Mom relayed, quickly correcting her mistake.

You had already made it confusing by switching to the ruler but it seemed Mom was counting the previous hits with the spoon.

*SMACK*

“No we start over. And we will keep starting over if you get it wrong again” you said, keeping your voice monotone.

“One, thank you sir!” Mom said, not questioning your order in the slightest as she reset the counter for herself.

You waited longer before you did the next couple of hits, giving her time to recover but also building up the tension so that she couldn’t brace herself.

Just watching Mom twist and turn as she tried to anticipate what you would do next and the way you could see how wet her pussy was, was keeping you aroused as well. You still wore a t-shirt and your underwear that you had gone to sleep in last night after having put them on when you left the room earlier but you considered taking them off.

And with Mom in such a **** position, the temptation would have been there to fuck her right then and there if you hadn’t made a promise with her. You did at least take your underwear off to release yourself from the confines of the material but you avoided doing any more than that.

Instead, you took your slight frustration and used it to fuel your more sadistic side and you made it through most of the swipes using the ruler.

“Eight, thank you sir” Mom exclaimed, giving you a chance to change it up for the last two.

You had been making sure to just hit her ass but with her legs still spread apart, you felt like you could still get a clean shot at hitting her inner thighs from behind.

*SMACK*

“Ahhh… Nine, thank you sir!” Mom yelped in surprise, barely getting through her words before you hit her again.

*SMACK*

“Fuck ahh… Ten! Thank you sir!” Mom continued, barely catching herself as she reeled through the pain.

The hits to her thighs had been in quick succession and you could tell they had been effective, each hit producing its own unique mark that was now growing redder on Mom’s skin. Mom’s heavy breathing told you that even with her doing nothing but standing there to take the punishment, it had been enough to literally take her breath away.

With the momentum you currently had, you didn’t want to waste any time, and while your testing had proved she preferred the stinging pain, you now wanted to move on to pure pleasure.

Before she could recover, you approached her from behind and reached over her to pull on her hair, using another arm to pull her upper body up off the bed so she was standing again. You were sure she could feel your cock pressing against her from behind but before she could even think about it, you turned her around to face you and then threw her back onto the bed.

It looked like she was struggling to keep up with what you were planning but once her eyes focused between your legs, they stayed locked in on staring at your erection. You still wanted to stick by your promise but given the way she turned her eyes up to look into your own as you stared down at her, you didn’t think she was currently in a position to resist. Or even in a position to want to resist if you were to take charge.

You stood over her with arousal flooding through you and once again had a choice to make.